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Old Bamboo Tank --
06/26/11
silicone seal leak 12/7/10 Leaking Tank/Aquarium Repair
8/4/10 Emergency leak in my 180 gallon!
4/20/10 my 25 year old 90 gallon aquarium sprang a
leak 4/21/10 Question regarding the trim base on a 150
gallon tank 4/20/10 Re: Question regarding the trim base on a
150 gallon tank 4/20/10 Re: Question regarding the trim base on a
150 gallon tank -- 04/22/10 Leak, fixing... Glass tank
4/7/10
Re: Tank seal -- 09/03/09 Leaking tank bottom trim 7/23/08 I just purchased a used 40ga eclipse tank the man said he thought it had a small pin hole leak in the back lower corner. <Mmmm... these can be the devil to actually locate...>> But upon testing I found that the whole back bottom edge is leaking. Do I have to remove the bottom trim to repair this? <Mmmm, maybe... but I'd try...> Or can I just remove silicon from inside and repair that way? <This first> If I do have to remove trim, How? <Cut away the Silastic from the glass... that is twixt it and the plastic frame; but first just try cutting out all the internal seal and replacing it/this. Might repair it alone> I could use any type of help before I start this project. Thank You! Denise <Please read here: http://wetwebmedia.com/glsaqleaks.htm Mmm, and some of the files above... Do ask your LFS, fish club about... if there's someone who can come on by, give you some "hands on" instruction. This work isn't hard to do (once you know how...), but messy, and dangerous if you don't have much experience with single-edged razor blades. Do write back with specific concerns if you'd like. Bob Fenner>
Possible Capillary Leaks 7/2/07 Hi, <<Hi, Carolyn. Tom here.>> I'm hoping you can help me. <<Carolyn, I hope so, too.>> I purchased a Juwel aquarium last year and to cut a long story short have now had 3 leak! <<Ouch!> The first was replaced by my supplier, the second he gave me my money back and the third, from a new supplier has just started leaking. I spoke to a lady at Juwel today and she says it sounds like capillary leaks rather than damage to the seals. As I understand it this means that the tank isn't actually leaking but that water is coming over the sides? <<Sounds like this is what she's claiming, Carolyn.>> I don't fully understand why this has happened or how to prevent it from happening again and wondered if you could help? <<Let's see.>> There is no obvious water running down the outside. I don't use an airstone, the tank is as level as I have been able to get it on my floor (<1mm off level - would this be enough to be a problem?) and sits on the proper stand, and I fill the tank to the level indicated as the maximum and never any higher. I do have the filter outflow pointing upwards to increase aeration but I assumed that given I haven't overfilled this wouldn't be a problem - the water from the outflow isn't obviously running over the side (I checked this carefully when tank 2 leaked!) but I guess just could be splashing occasionally. The woman at Juwel told me to empty the tank and dry it off, and then to refill it slightly lower and to be careful when doing water changes (which I already am!) and to make sure the tank is absolutely level (which I tried to do last time!). My concern is that even if the tank is undamaged I'm going to need a new stand as this has been water damaged - the one I have costs about £50 (I'm UK based!) to replace and the last thing I want is to pay out that money only for this to happen yet again! Can you help?? Many thanks in advance, <<While I'm unfamiliar with the Juwel brand of tanks, I did take a look at their website. Very nice, at least from their web display. A few questions for you, perhaps rhetorical. When you checked the level of the tank, did you do so from both side-to-side and front-to-back? Did you also check for level with the hood in place rather than just the tank itself? Also, were the entire 'set-ups' returned or just the tanks? I ask because water, even if not 'splashed', can/will condense on the hood/cover of tanks, particularly if they're warmer, i.e. tropical, tanks. The tank itself may be perfectly level (or near so) but, if the cover is not (as it sits on the tank body), moisture collected beneath it can run/'wick' to the lowest point of the cover and leak over the side (perhaps in a spot -- in back? -- that you might not have noticed). It seems to me, though not out of the realm of possibility, that it's highly unlikely that three different aquariums would have the exactly the same leaking problem. Just doesn't follow. I'm surmising there's a 'common denominator' somewhere in the mix and I'm betting on the hood.>> Carolyn Hope <<Cheers, Tom.>> Re: Possible Capillary Leaks 7/11/07 Hi Tom -- <<Hello again, Carolyn.>> Thank you so much for your prompt reply and good advice! <<More than happy to help out.>> After doing some tests I have concluded that it was in fact water coming over the side (I still haven't found the evidence but leaving the level lower and altering the direction of the filter outflow seems to have stopped the leaking for the moment until I can get everything sorted). <<Good to hear, Carolyn.>> I have discovered that Juwel will sell me just the damaged top panel of the stand rather than me having to replace the whole thing so that's also good news! <<Sounds like a good company to deal with, Carolyn.>> I hope this will be the last you will hear from me on the subject!! I only wish I had managed to discover all this earlier.... <<Well, Carolyn, for your sake, I, too, hope this is the last of your 'trials and tribulations'. Nice to hear about a vendor that's willing to deal positively with its customers, as well. Will make a mental note of this. :) >> Best wishes Carolyn <<Best regards and good luck. Tom>> Question about an old aquarium, glass sealant repair? 5/14/07 Howdy! I was recently given a 80 gallon O'Dell glass aquarium by a generous individual. The story with this tank is that its over 3 decades old (33 to be exact). Its built pretty thick and it has very few scratches. About 12mm thick, green glass on all panels, and support with 4 piece plastic moldings on top and bottom. The seals, however, might need some work. I plan on making this tank a reef tank, but I wanted to get an expert opinion before diving into it. Should the tank be ok to use? I've heard some folks mention that glass may become brittle over time. Thanks in advance! You guys rock! -Vic <Was the tank "kept/stored in-doors?"... If so, and the Silicone seals look, feel okay (still semi-soft/flexible) it should be fine. I might test it (outdoors) on the intended stand, with a bit of newspaper underneath (to detect small leaks)... a day or two ahead of filling it indoors. Bob Fenner> Leaking Tank 4/26/07 I just purchased a used 55 gallon tank. <Neat.> I also just realized I stupidly trusted the person selling the tank when he said that he was sure it held water. The aquarium does not look like it was stored all that well; it has no cracks or damage, but it is quite dirty and has a bit of sand in it. Judging by the sand, chances are he did not actually fill it with water and test if it held water. How easy is it for an aquarium to get damaged enough to leak? <With older glass aquariums, easily. However, it's not to big of a task to remove the old silicone and replace it. See WWM re:.> Also, I live in an apartment complex with not a lot of room to test for leaks, are there any alternative methods to test for leaks other than the one suggested on WWM? <Any surefire ways, no...do you have a friend with a garage or backyard? Adam J.> 90Gal Repair.... 4/17/04 Hey I have read all the pages of your FAQ <Doubtful> and I still have a few questions left unanswered: The story is my friend is starting getting into the hobby of caring fro fish! <Ones with bushy hair-dos?> He is very excited and likes to do things the right way. We started with a small 40gl tank and now he bought a used 90gal with leaks. We are attempting to re-seal his tank, and have already scraped the bottom edge. <Need to "scrape" remove all the inside Silastic... clean up the areas with single edged razor blades, a solvent...> After reading through the FAQ I am convinced that we need to scrap the rest of the silicon off, that should be no problem. A flag that arouse is: Should we take the entire tank apart? <I would not> or do think it would be sufficient to re-seal the tank from the inside only? <Should be> If you advise us to take it apart how do we remove the plastic caps on the bottom and the top of the tank with out breaking them? <I would leave the frame/moulding in place...> Are the solvents mentioned in the FAQ's safe to use on plastic? Will they just melt the silicon away? <Mostly the latter if applied "correctly"... I'd keep the rags, what have you with the solvent away from the plastic...> Or do we need to wipe the silicon off with the solvents in place? Thanks, Ozzy <...? Don't follow you here> PS- Great site keep up the good work. <Please read what you think you're writing to someone, amend before sending. Bob Fenner> -Tank Leaking- - 04/15/06 I have a 150 gallon show tank. Last night I noticed a leak coming from somewhere on the bottom of the tank. <Not good> I do not see any cracks. I have removed everything from the tank and now I am trying to figure out what to do. I have read some of the postings on your web site regarding leaks. My question is I think the inner seal on the back side - bottom of the tank is where it is leaking from. Do I need to just remove the silicone on that side and reseal it ? <Probably that is all it needs, however if it is down and apart, you might as well reseal the entire edge or the tank. if one seal gave way, the others might not be far behind.> or do I need to disassemble the whole bottom of the tank and reseal? The leak itself was a slow steady drip and water was as even around the top of the trim on the tank. That being said do I also need to remove the trim and reseal that as well? Any advice will be very much appreciated. Thank You Zoltan <Resealing just the side that is leaking should fix the issue, however a complete reseal of that panels inner edges will probably be wise. Is the tank not level on its stand? If it isn't it can cause undo pressure on the seals and create a leak.> <<RMF would definitely at least try resealing all the inside seams (can leak in one area on the inside, a totally different area on the outside... and for sure, test this tank outdoors before re-setting up inside>> <Justin (Jager)> Leaking 300g Glass Tank - 05/15/2006 Hi, I read through all of you FAQ's on tank repair and did not find my problem, so here goes... <Alright....> I have a 300 gallon tank purchased many years ago, last year I moved it into a new house and moved the tank. Heavy Machinery vibrated my house and the tank sprung a leak (lost about 200 gallons onto new carpet and into the basement!) <Yeeee-ikes!> I drained the tank, took out the old silicone, cleaned the seams with alcohol and put in the new silicone. It held about a year! And last night sprung a leak again (in the exact same place!) <Nooooo!> about 8 inches from the bottom. My wife is sick of the tank ruining the house.... and wants it gone! <Understandable.> I love the tank, but I don't know what else to do? Is there an epoxy or something stronger I can use? <Just silicone.... Maybe a thicker, wider seal this time.... But I find it disconcerting that it leaked in exactly the same place again. I would be concerned about a problem with the glass in that spot.> The Tank has a frame on the top and bottom with screws that could be tightened, I am scared to tighten them with fear of going to far and cracking the glass. <Not knowing enough about your specific tank, I'm not qualified to make a recommendation on that.> Any help would be greatly appreciated. <To be quite honest, I would suggest that you look into getting an acrylic aquarium, or having one built to match the dimensions of your current tank so you can re-use your same stand, canopy, etc.... And you can approach your wife with the reassurance that a professionally built acrylic tank is pretty unlikely to leak under normal circumstances. The expense of the acrylic tank may very well be worth it, considering the money you'll save in carpeting the next time the glass one springs a leak.... Wishing you well, -Sabrina> Leak Repair Advice Needed :) 6/4/06 Hello Crew, (my heroes) <C> Thank you for all the valuable info, effort, experience, and time you put in for anyone who might be lost like me here. LFS fish store I work at had a problem with one of the "feeder" (I hate this term) tanks. Basically a 90gal tank with a leak at the right bottom part and in the middle. <Sounds like a Marineland unit...> Silicon kind of stretched and started a minor leak. This I assumed cause by the weight of the water leaning on that side because after looking I saw it was not level. <Could easily be...> The tank was under warranty so I got the "trash". Questions: 1- Well would the razor/reseal trick work in this case and be reliable? <Should do fine... if all is cut away, replaced> 2- And/or Should I patch the repair job with a 90degree acrylic piece all the way to the corners? <Mmm, no... acrylic to acrylic bonds poorly with Silastic, acrylic to glass even more poorly> 3- Also should I completely remove the trim or just try to clean it up with razor/acetone and not mess with the whole trim? <I'd do the whole inside trim for sure.> A million thanks CBora. <Welcome. Bob Fenner> Repairing a 30g Leaker 6/19/06 Hi <Hi John, Pufferpunk here> I found your website and was wondering if you could help me. I recently bought a 30 long on a very nice wooden stand, as I have several large convicts I was happy to find it. When I filled it I found a leak on the upper right front side coming through the seal I immediately emptied it below the leak line and went to repair it with aquarium grade silicone. I went far below the leak line and all the way up to the top. I waited 48 hours and filled it. The leak had slowed but was still present. Now I live in CO and it's very arid here but I was wondering if I let the tank dry out in that area for a couple of days and then go at it with the sealant again am I just beating a dead horse. I guess my question is. Do I need to do anything special to repair the seal on the tank in that area and is there something I can do that's not too drastic. <I have repaired many a tank, from a 10g hex to a 125g tank. Be sure to take a razor blade & scrape off all remaining silicone, all the way to the bottom of the tank on that side. Clean thoroughly (no soap, Oxyclean works great) & wipe with alcohol. Let dry & try again. ~PP> Thanks for your time, John G <<Need to do all inside seams... you'll see. RMF>> Durango CO Leaking Aquarium Repairs - 1/24/07 Hi, <Hey Ryan, JustinN here.> I bought a used tank (about 5 years old) from my LFS about 6 months ago, its a 77 gallon Hagen tank (thick glass, about 3/8" I'd guess). <Ok> I set it up as an African cichlid tank and all was fine for about 4 months then it developed a leak from the front left-hand bottom seam/ seal. <Not good> I was home at the time and caught it as it started (didn't drain very fast or loose much water) and had a spare 55gal kicking around that was empty at the time so I moved everyone over to that tank till I could repair the 77gal. I had resealed a couple of other tanks previously (including the 55gal backup tank) and all had turned out fine. I repaired the 77 gallon tank using 100% silicone black RT sealant and rubbing alcohol and let it sit for 2 days before test filling it. <...? You did remove and replace all silicon here, right?> It tested fine and sat full of water for about 2 days I guess. I set the tank back up and moved everyone back into the 77gal. It was fine for 2 months and then we had to move. Got the tank moved and set back up again in the new house. It was fine for about 2 weeks when I got a call from my girlfriend saying she came home from work and found the tank completely empty and all but 4 fish dead on the bottom. <Yeeikes! Sorry for your losses, my friend.> She got the live fish into my other tank and cleaned out the 77gal tank. It leaked from the same corner as before, but this time it was much worse. The tank wasn't perfectly level in the new house and did lean towards that corner. SO I'm guessing that could have been the cause (my fault, was in a rush to get the tanks up and the fish out of the coolers, learned that the hard way I guess) <Likely added to the problem, yes.> So now my girlfriend is trusting of the tank anymore but I'm stubborn and refuse to give up on it (love the tank and it was perfect for my Africans) <Yes, but I do understand her sentiment: a leaking tank will make quick work of many other of your possessions.> So this time around I'm thinking I should cut the tank right apart and start with fresh everything instead of just sealing the inside seams. <Oh, yes. You just sealed over the seams on this (and previous) tanks? This is hardly a solution for a leaking aquarium. The new silicon will not bond properly to the old silicon, it does not matter how much you clean it with rubbing alcohol first. This was bound, destined to leak again eventually, regardless of the levelness of the tank.> How should I go about this and do you recommend using the black RT or the clear silicone? <Either silicone will be fine here, my friend. Information and procedures for tank repairs such as this are posted, thoroughly here on WWM my friend. Read here: http://www.wetwebmedia.com/aqrepairfaqs.htm and scan through other peoples experiences, and formulate your own attack plan as such. This is the strength of the wonderfully powerful tool Bob has built here at WetWebMedia -- a medium that doesn't encourage, but essentially forces the end user to educate themselves.> Also was wondering if I should add a center brace to this tank (doesn't have one) as it seems to bow quite a bit when full. Sorry for the length, I just want to make sure I get this one right so I don't have this problem again. Thanks for reading. Ryan (BC, Canada) <Adding a center brace is entirely up to you, though I do put a great deal of merit on peace of mind purchases and additions. Good luck to you! -JustinN> Leaking Aquarium Repairs -- a follow-up - 1/25/07 Hello again, forgot to put it in my previous email, but yes I did cut out all the old silicone seal on the inside of the tanks I repaired being careful not to cut into the seams. Followed by cleaning all edges with rubbing alcohol and letting dry before running my new beads of silicone. <Mmm, no, this is not a repair my friend. This is at very best a poor stop-gap solution. The bond and leak-proofing is not made by bonding silicon over the gaps, its by the silicon in the seam sealing, and creating the bond and seal between glass panels. The overflow of silicon in the inside edges of an aquarium is simply a side effect of properly filling these gaps. Any tank repaired in the manner you describe here, will fail eventually, every time.> How much bow is acceptable to have in a tank without a center support and 3/8" glass? Thanks again, Ryan <Any visible bowing, beyond more than a quarter inch of deviance from the original (non-filled) point would merit a center support, for me. With a tank this size, if I was already going the full nine and removing, cleaning, and resealing ALL glass panels (which, you must do, or you WILL have another leak), I would add the center brace just for my own peace of mind. I would rather spend an extra 20 bucks and be confident in my setup, then save the money and always worry about that "maybe". Good luck! -JustinN> Leaking 125 gallon tank 02/17/07 My 125 gallon tank has sprung a leak. I have cut out the silicone on the inside on the side it was leaking from. I resiliconed the seam let it dry 48 hours and began to refill. The tank fills to 2/3 full then begins to leak slowly. I drained tank removed silicon inside tank again cleaned area with alcohol dried area resiliconed and waited 72 hours for silicon to cure. Refilled tank and it leaked again when filled a little more than previous time and started leaking again. Should I reseal tank completely inside? <Ah, yes... "at least" this cutting out, cleaning all corners, and re-sealing... As it is not possible to tell where the leak (internally) is actually originating. At the "worst" you may be faced with cutting out all Silastic, dismantling all the glass panels... removing the frame... and re-sealing all... Let's hope not. Bob Fenner> Possible tank leak?? I think my tank is leaking and now I am concerned. I am losing up to about 3 gallons a day on a 120g at first I thought it was a evaporation thing. Today while filling up the tank I noticed where the doors join when closed salt creep. <Mmmm, maybe splash or spray...> I have checked bulkheads all seem fine. The outer edges where I can see where the tank joins from sides to bottom is free of salt. no salt evidence down the seams. The plywood the tank is sitting on seems dry.... I really do not want to break everything down again, Suggestions comments welcome, Lee <Try taking some toilet tissue and wiping about at all plumbing fittings, joints, seams of the tank... even a small amount of water should show. Do check about for errant spray, splash as well... this "adds up" over time... may come from a pump discharge, mechanical aerator... Bob Fenner> Possible tank leak I've read most of your posts about resealing tanks. (great info) I found a post where you actually didn't recommend resealing a tank under 100g because it will leak again in 2 years or so. Do you still feel this way? <Mmm, in this case "size doesn't matter"... Don't know exactly what the post you're referring to might have been about> I bought a 75g used from a fish store that went out of business. The tank is 1 year old and it seemed to leak a little so I resealed the inside bottom seam only. <... best to "do the whole thing." As you now know> I refilled the tank after 1 week and in a couple of days noticed some moisture underneath the silicone. It wasn't producing a drip on the floor just looked like condensation. Could this just be condensation or is leaking somewhere? <One or the other...> Any info or help is greatly appreciated. Thank you, Mark <I would at least put a bucket of some sort under the area... and if the occasion presented itself to have the tank dry, clean, empty... cut out the entire inside silicone and replace it. Bob Fenner...> Commercial Aquarium leak in Ireland Heh, sorry to send a private message but couldn't find anything on the forums; I think it may be because I need info about a commercial tank and most posts are about private glass tanks. <No worries. Welcome> I am a member of staff in a 35 tank native marine aquarium on the west coast of Ireland. The supervisor recently resigned and left me (completely inexperienced, I was a chef in a previous life) with the task of managing said aquarium. Anyway, I have a large 8 cubic metre tank <Now, that's a tank!> that houses conger eels. <Neat animals... around the world these largish eels can be approached (even handled) with impunity> This tank is made of what appears to be concrete with a 2 metre square Acrylic window set about 1 metre off the floor. A very slow leak has appeared to the right and below the level of the window. I drained the tank and re-siliconed the window panel on all three sides but had a gut feeling the leak had nothing to do with the window. <Happens> I could have sworn I saw some kind of suction or movement in the base of the tank when there was a couple of inches left in it. <Yikes... dangerous> Now the tank is refilled and conger back in. I think I need to find the location of the leak so I know what I am up against, does anyone know how I might find it? <This can be a very trying ordeal... as the water can actually originate most anywhere within (or even outside...) the system and appear most anywhere outside... there are some techniques using dyes of differing densities... but I encourage you to go the perhaps expensive route of having a structural engineer firm come in and inspect the system (and all others of size there)... and consider the route of draining, drying, and resurfacing the entire inside (I would remove, clean the race/facing panel, and re-silicone the viewing panel after this) with a water-proof material (likely an epoxy)...> Some kind of dye? Or is there product I can put into water that will automatically be sucked into the leak? Thanks for any help you can offer Alex Stewart Lahinch Seaworld, Ireland <Oh, see you're aware of the dye... these can be carefully placed in layers (by density) and a spectrophotometer used on the subsequent leak water to detect at which level/depth the water is escaping from... As stated though, I would have the system inspected for structural integrity overall... and re-fit, re-do the entire inside. Bob Fenner> Lahinchseaworld@eircom.net Emergency move! 30-gal Tank got a leak Dear WWM crew: <Paul> I never start an email to you guys without thanking you for everything you do... So thanks! <Welcome> It seems I am running into bad luck after bad luck starting up my aquarium. I converted my 30-gal FW to SW and got a 10-gal as a QT tank. My fish (two clowns, one Gramma, 5 hermits) seemed happy, ate relatively well, and were moderately active. The Gramma mostly came out of the live rock for feeding, after which he would promptly go hide again. <Typical. Give it time> I woke up one morning to find a huge puddle on the floor and a good portion of the aquarium's water level gone! The aquarium was leaking, so I decided to put everything in my 10-gal. I filled the bottom with sand, put as much live rock as I could without stacking it while still making caves, filled it with water, and got my fish to safety. Now, here's where my confusion comes in. My fish are much more active! At feeding time, they are extremely anxious to get food, and will even take it out of my hand if I do not let it go in time! The Gramma no longer spends his time hiding within the live rock. The crabs are much faster than before. Is this a bad thing? Should I take this to mean the fish are happier, or just frantically claustrophobic? <Something/s are different... maybe you've raised the temperature... perhaps just a good water change...> I know small aquariums are dangerous because it's harder to keep the water quality consistent. However, if I have the water tested by a LFS weekly, would it be impossible, and would the fish be unhappy? <No store, no agency is able to actually test for all...> Since I live in a small apartment, the small aquarium looks much better than the large one, the fish are more active, eat better... everything seems to be better, except the actual size of the aquarium. I have been maintaining this small 10-gal mini-reef like this for the past two months. I've been changing 25% of the water weekly, and the water I've been taking out of the aquarium, I've been getting tested the same day. If I am diligent about these parameters, is it possible I may keep the aquarium as is? Or is it still ridiculously small? <Mmm, you may have good success for a good long while... much of the probable negative interaction twixt and between the clowns and Gramma has been eliminated through their introduction in the larger tank> I only ask because my 30-gal is useless, I can't afford a new tank at the moment, and I'd have to give the LFS back all my fish and live rock... and something close to a $500 investment will have been wasted. Thanks for your time! Paul Ghica <Paul... did you actually ever find the leak in the thirty? Very often such "leaks" turn out to be gear failures, splash and spray from a powerhead, diffuser... I would definitely set this tank up (outside) with newspaper under it, and CAREFULLY fill it, check for the actual source (if any)... and even IF it did leak, I would simply reseal (silicone) the inside corners... easy to do. At the very least, sell all to someone who will test, repair it. Bob Fenner> Marine tank leaking 5+ gallons a day, brackish algae problem Hi all at Wetweb. <Craig> I am not going to beat around the bush I have a major problem. My marine tank started leaking 2 days ago. I am up to 5+ gallons a day. <Yikes... where from? That is, have you been able to identify the specific region of the actual leak?> So I set up my spare 55 gallon tank as a marine tank yesterday. I have the temp up to about 78 degrees right now, and salinity matches my other tank. My problem is I have to transfer all 3 of my fish, about 10 crabs, and a whole lot of live rock 50+ lbs, with tons of life on them including some stony coral that just sprouted on the rock over time (I have absolutely no idea what kind they are, two are green and one is cream really pretty). I have to transfer this stuff all today as the mess from the other tank is just too much to live with. In other words no cycle in the new tank. Am I going to have a massive die off, most assuredly the tank they are in now will give out and all will die for sure, if I do nothing. <Should work out fine... do vacuum, let settle the water itself in moving... decanter the solids (throw them away)... and carefully re-stack all... upside up!> What things do I need to do to help the emergency tank change. I am sure you guys have personally experienced tanks that start to leak to the point where they are unusable, any pointers to help me ease the major upheaval in my marine aquarium's life would be greatly appreciated. Also my sand at the bottom of the tank is very full of life I want to use this in addition to the new substrate but I am not sure what to do here. The old sand is more than likely full of phosphates and other icky nasty stuff. How do I clean this without killing everything in the sand or totally polluting my new tank? <Please read here: http://www.wetwebmedia.com/movingaq.htm and the Related FAQs (linked, in blue, above)> By the time you answer this I will probably have made my decision on what to do, as I am doing this today. But how to take care of the substrate for future reference will be nice to know. As this 55 gallon is a bit smaller than the 80 gallon tank I am moving it from, so a new tank move will be in the future. Now to question number two. I have a 120 gallon BW tank with a snowflake eel about 20 inches long now, a dragon fish 16-17 inches long, a lot of sail fin mollies (they are proliferate baby makers too), a gourami (odd he is in there and thriving. Why is he doing so well? I thought he was a freshwater fish only... <Mmm, can tolerate considerable salt> ...he is a blue common gourami, and he has been in there 3 years now). Anyway my eel eats ghost shrimp and guppies. I have a guppy problem there are millions of them now, this is recent too, and they always seemed to stay about the same in population, way to many for my eel, and gourami to eat. Although they eat a lot of them. I would like to know what BW fish I can put in the tank to cull the guppy population. Salinity is 1.011. I was thinking 3 or 4 figure 8 puffers. <Better to simply net them out... the puffers will/would likely keep nipping...> Next one: I have an algae problem too in my 120 gallon tank, never been a problem before. I read on the internet that I could put a Plecostomus (sp) in a BW system. Seems to good to be true. So I was wondering what I could put in the tank that would eat the algae off the rocks and tank glass. <You might be able to acclimate (over a period of weeks) a Loricariid species to 1.005 spg or so> Ok I realize there must be a source of phosphate causing this so I upped my weekly water changes from 15 to 30 gallons and it is not helping. 30 gallons a week is a major job and I do not want to have to keep doing that. Also I changed how long my lights are on. Thanks in advance for your help. Craig <There are other means of algae control. See WWM re. Bob Fenner> Re: Marine tank leaking 5+ gallons a day Hi again I did the change and I found the leak in the 80 gallon tank. I was in the right back corner of the tank under the substrate. It was actually cracked. On the bottom glass panel. <Yikes!> The tank is now being relegated to the garbage. <Mmm, might be able to be salvaged... as a paludarium... or patched and partly filled for... turtles, amphibious plants...? I would list it and sell it> The change went well all things considered, but now I have one more question regarding care of stony corals in a newly set up tank. What kind of husbandry am I going to need to do to keep them alive? <Same as you've been> I understand a new tank is hard on stony corals. The tank they came from was set up for about 3 years and really well established. I am using my metal halides with the 55 gallon and other than that I know nothing about corals, as I never intended on having any in the first place. Just a FOWLR tank, as a matter of fact I did nothing to promote them after they started growing. They just do their thing. I leave them alone and they do fine. Now I moved them... So as you can surmise I have none of the equipment to check for proper conditions for coral. All I have is a hydrometer, and a test strip kit for nitrates, nitrite, and ammonia. P.S. I also found a small yellow starfish about the size of a 50 cent piece must have been a hitchhiker and a green crab also about the size of a 50 cent piece, but it has huge claws, it scared me because the thing jumped out of a live rock piece onto my arm, I dropped the rock lol. I think I scared it more than it scared me. I also found several Bristle worms, one about 12 inches which I removed. I kept the small ones. They eat detritus as I understand it, not living stuff. But the strangest thing I found was a little crawdad thing, really bright red about 1 inch long. None of these things I found were consciously put in my tank, but I think it is wonderful how life can survive being taken from the ocean to the distributor, to the pet store to my house. Put into my little slice of the ocean and thrive, then surprise me years later by being seen for the first time. Makes me wonder what else is in the tank, that I still have never seen. Just simply amazing to me. Craig <What a planet eh? Please read here: http://www.wetwebmedia.com/marine/inverts/index.htm re: stinging-celled life care. Bob Fenner> Can Not Find the Leak Hello, <hi there> I'm really hoping you can help me out. I recently added a 6th tank to my collection, it's a 90 gallon that will be a big community tank. I bought it used, and noticed when picking it up that the guy I bought it from had siliconed the bottom very heavily! I'm talking likes LOADS of silicone. His floor behind the tank had serious water damage. He claimed that his impeller in his Aquaclear 500 broke and it flooded his floor (Sounded like a large lie to me).... <Mmm, have never heard of such a leak source myself> After removing the tank from the stand, I noticed that the stand had water damage in the front left and rear right sides, but it looked like the water flowed from the front to the rear right leaving a distinct trail. I've fixed a 29G before, no big deal, just added a piece of glass to the inside... <Good technique> So far, me and my father have found ABSOLUTELY no leaks... Yet we both have a gut feeling it's a leaker. We cut away all the excess silicone, poured water into it and it still didn't leak. We took notice of the bottom frame looking slightly cracked. The bottom left corner (where we think the leak is, though can't prove it yet) frame is not flush with itself. The left side panel also is not flush against the glass, but unless this guy brought the tank to a professional repairer, I don't see how he could've done such a nice job on the sides (the bottom on the other hand was him.. ha)... The left side is off by maybe 1-2 millimeters, not much, but I noticed it by running my hand down it. The left backside was perfectly flush, it's just the front left. Sorry for rambling on, here's my questions.. If we can find no leak, should I just believe his "impeller dieing" story? <I'd believe what you observe> The side panel not being totally flush, will that cause any problems? <Likely not if it hasn't to date> Should we take the panel out and just redo the whole side? <I would not> And finally, is there any easier way to repair a leaking tank, other than totally removing the whole pane of glass you suspect is leaking? <Yes... first thing to do is (of course) to figure out IF there is indeed a leak (often equipment, splashing from air stones... is a cause), second, to cut out and replace "corner" silicone, third to affix a panel over a "bad" area and third also... to cut out and replace a panel...> The 90 uses 1/2" glass and that stuff is massive and seems like it's going to be hard to do much with properly, <Yes, difficult to remove panels in larger size tanks> plus, we're still trying to figure out how to make a brace since this tank was made without one and we have glass panel tops! <I'd consider running two strips (of 3 or 4 inches width) along the inside front and back... or one larger (at least a foot in width) piece in-between the front and back panels at top inside...> Oh well, this is going to be a big project! :-) Thanks for your time guys! ~Joe <Is the tank in a place that will cause trouble if it does leak? I would place it there full for a week or so to "test the waters". Bob Fenner> Re: Can Not Find the Leak Hello Bob, <Hey Joe> The tank will be going in my room. We have a single story ranch with a basement. The floor is wood, but it now has full carpeting. We're actually going to just put water in it for 1 week and see how it handles since our last attempt at finding a leak(1 hour ago) led to nothing. <I'd put it in the basement... or in the driveway> I spoke to the guy I bought the tank from, he was really serious in saying it was an impeller problem, and that he had no leaks. Said he siliconed the bottom 2 years ago because a local fish store suggested when a tank hits 5 years old, it be re-siliconed... He did a really poor job so we will redo it in a more reasonable manner, not just globbing it on... <Agreed> And here is a question from my father. If we do find a leak and the pane of glass does have to be removed, what do you feel is the best way to support the pane once it is put to set back up? He was thinking about making a large frame out of 2x4's for the interior and exterior to keep the pane in place. <Actually, a few pieces of tape will do... the piece is pretty well stuck in fitting tight with the silicone. Some folks use wood clamps, and if you're going to do a whole bunch of such repairs, jigs can be fashioned, but good masking or strapping tape is fine here.> Also, how long should we allow the silicone to set? The large tube we have suggest 24 hours, but I have heard up to 72 hours. Which do you suggest? <I would go with your three days to allow complete curing. Bob Fenner> ~Joe Re: Can Not Find the Leak Just thought I'd share with you something related to this persons query. I have had impeller problems with an older Aquaclear 500... the impeller seized and must have damaged the seal around the motor (or something like that)... when I woke up in the morning about 10% or more of my 230 gallon fresh-water tank had siphoned into the filter, then out of the filter, then onto my floor. I was worried that it was a leak also (having just bought this tank used) but it really was an impeller problem. Hope this is useful, Jeremy <It has for me. Thank you. Will post. Bob Fenner> Slow Leak-What Next? Plans for bigger better Kind Sirs, <Hello! Ryan this morning> I arrived home from vacation yesterday to find my 30 gal aquarium had a slow leak. <I'm sorry to hear that> It seems the bottom seal is starting to give way. <Is it an old tank?> I caught it in time, carpet slightly wet, particle board stand pretty much sucked up most of the water and only about a 1/2" of water missing from the tank. <Guardian angel must have been fish-sitting!> Currently I have a 18 gal Rubbermaid tub filled with tank water and 20 lbs of live rock (aerating), a 5 gal bucket with 2 clowns, feather duster, yellow damsel, and a cleaner shrimp (aerating). I will be moving them to the Rubbermaid later today (wanted to make sure that didn't leak) and a 5 gal bucket with tank water (brown - the 30 gal was a UG setup) and the crushed coral. My current situation has put me into the express lane to purchase the 75 gal I was researching to set up. <Understandably> It looks as though I'll be going with the 75 gal AGA reef set up with only the one corner overflow. I wanted to look into having a tank drilled, but with my lack of plumbing experience I figured I'd better go with something pre-made. <It's not nearly as imposing once you roll up your sleeves. I would recommend you look into more- this may be the last tank you buy for some time. Check out http://www.ozreef.org/ for some great ideas. Corner overflows can be loud- this may or may not matter to you.> Future plans will consist of adding a above tank refugium to the sump. <Great! Ideal> Many questions on how fast can I upgrade to the 75. Can I get away with adding all the water from the 30 (including the brown) to the 75 and then adding freshly made salt water. (I would like to avoid keeping them in the Rubbermaid while the tank cycles). The new tank will have a 1" sand bed and I will put some of the crushed coral in mesh to provide some bacteria to the sand. Or would I be better off to have a half filled 75 gal and slowly add 10 gal a week over i period of time, using power heads to circulate the tank. Or some possible alterative that you might have. <This really depends on if you're adding more live rock or not. If you're buying a huge new quantity of live rock, just use the new synthetic saltwater and the rock will cycle it for you. If you're going to do it slowly, adding pieces of rock gradually, go ahead and dump in the old stuff. Any way you do it, this is going to recycle.> As for the 30 gal. It seems the this will become my curing tank for the new rock I will need to purchase. <Possible QT later as well> As for resealing. Can i get away with just adding sealant over the existing or should I look to remove some of the old and put the new sealant over? <If this is never going to be a permanent aquarium again, just patch it. If you plan on using it, do it right.> Also, I'm sort of reluctant to turn the heater on attached to the Rubbermaid, should I be concerned with melting (?) or would this be ok? <Should be fine, just watch the temperature very carefully for the first day or so.> Any thoughts or links to your sight would be much appreciated. Received the new book, only glanced at it quickly, looks great. I was hoping to make it a slow read, now it seems like it's going to be a crash course. <Dave, this will be fine. Just keep a close eye on your livestock, and enjoy this experience! If you're not comfortable with the whole Rubbermaid deal, go get yourself a couple 10 gallon cheap-o tanks. Take your time! It's easy to rush it with a new tank, especially if you already have fish in limbo. There are many similar stories on the FAQs- they should be very helpful. Good luck! Ryan> Thanks again, DaveK - Leaky Hex - Hi there! Well, at 3am this morning I woke to water on the floor. I have a 65 gallon Hexagon tank. I could see one of the corners bulging out and water was steady dripping out of it. <Oops... that's no good.> I drained about 2/3 out (not leaking now) and still have my fish in there. Fresh water. I have another tank to temporarily hold them, but my question is how to fix the problem? The tank has been set up for over a year now without a problem and now it leaks. Is this normal? <No, that's not normal but does happen.> It seems it is only at one joint. Should I remove the one seal and replace the silicone, and if so, how do you keep the joint together when resealing a hexagon tank? <With the plastic top and bottom, these act as forms when the tank was built.> Is it the same concept as a regular rectangle tank? <Basically, but slightly more of a pain in the butt to assemble because the joints are not 90 degrees.> And if I do one joint, should I do them all? <I would, just because you don't want to go through all this trouble only to have it spring a new leak down the line.> Thank you for your time! Christy <Cheers, J -- > The leak that fixed itself . . . Huh? Hello WWM Crew, I recently picked up a Via Aqua 150 (105 gal.) aquarium from a friend. It had started leaking at the base and was ruining his new carpet. He gave it to me to get rid of it. I witnessed heavy leakage from the base of the aquarium when I arrived, but it was too wet to tell where it was coming from. After we drained it and lifted it up, there was a bunch of water all over the bottom of the aquarium that had collected between the tank and stand. I took it home. Removed all the sand and let it dry. The next day, I set it on 4X4's and filled it with freshwater up to 2 inches from the top. I didn't notice any leakage so I let it sit overnight. This morning, there were no signs of leakage. I can't figure it out. The only factors I am considering are that he had salt water in it-which I assume is heavier--and he had a ton of live rock and corral in it--I filled two 25 gallon tubs with rock alone. However, I would think that if the weight of the rock failed the seal that it would still leak once the rock is out, plus I am afraid to put the rock back in because they are in salt water now and I don't want to kill anything by putting them in fresh water. The tank doesn't re-seal itself right? Do you have any idea why I can duplicate the leak and more importantly, what I should do to ensure that the tank doesn't leak again once I get it inside the house? << Yes, don't fill it with water. Okay so I know that isn't what you were hoping to hear. To me, a tank that has once leaked makes a great reptile cage. I don't like the idea of fixing them and trusting that to be the most expensive thing in my house. But to answer your question more directly, I would set the tank up again, put paper towels underneath the tank (they work great for finding leaks) and leave it there for several days. >>Thanks for any advise you can give me. << I hope that works. >> Jeremy << Adam Blundell >> Perimeter Bracing Hi guys and gals at WWM. Love the site, and you're always the first people I turn to for answers, yet I can't seem to find the answer to this one... I've just bought my 6th tank in the house, though I am in need of it for a semi-emergency. (my 55 gal is leaking about 15 gal a day from a seal on the bottom). It's a 110 gal 72x18x20 with 1/2 inch glass. I got it from a random flea market type place for 75 bucks. couldn't pass it up. anyway, I've already stripped the sealant on the inside, and resealed it, and I've inspected the sealant at the joints holding the panes together, and it all looks good. My question though is this: I was told by one of my LFS that it should have some bracing. The plastic perimeter trim was only on 3 sides, and was broke in the corners...obviously this isn't supporting. Does a tank with these dimensions need bracing as in a cross brace from front to back or perimeter bracing to hold it together (if it even provides any support) or is the glass of sufficient strength to not bow? A few of the previous q.'s on your site concerning trim point to it's non-effectiveness on smaller tanks, yet no one has asked with larger tanks. Thanks a bunch! I tell everyone about the site, and will continue. :D < A 6 foot long tank needs some cross bracing in the center to prevent the glass from bowing at the center front and center back of the long pieces of glass. The easiest way to do this is to cut a piece of glass that is about 8 to 12 inches wide and will fit in the center of the tank from front to back in the upper edge of the center of the tank. It sound be siliconed in place and allowed to cure for a couple of days. A piece at each edge of about 6 inches wouldn't hurt. The perimeter decorative molding would be needed at the bottom to provide the same support along the bottom between the tank and the stand.-Chuck> Jeremy Tanner Glass Tank Repair My question is this, I have a 30 gallon glass tank, with all necessary components. I am very much on the empty wallet side, and want to set it up for my daughter. Everything was used but working. During the move, there has come a leak from the bottom of the tank. There is no cracked glass, and I removed the caulking, in order to reapply. The local stores have said to use regular silicone from HD or Menards. I have read the labels and they are not recommended for aquariums. <Do look around some more. My Home Depot has almost 50 different silicones and it took me sometime to find the right one. You are looking for 100% pure silicone. The tube I have says nothing about whether it is safe or not for aquariums.> I am afraid of off-gassing from the silicone into the water and contaminating it. <The smell will go away in 24 hours. The unsafe part is from certain formulations with added mildew and fungus killing components.> Is there a special silicone to use? <100% pure, no additives> Or how about an epoxy that is clear and very permanent? <Better to use silicone> I do not want to do this again, and I don't want to let down my little girl. I also have concerns about flexibility. Where can I go to get these products? <If you cannot easily find it at a hardware store, call some more shops. Some of the local shops around me carry silicone from All-Glass (a tank manufacturer).> Please help, Todd <Good luck to you Todd. I would recommend test filling the tank outside or in a garage or something after your attempted repair. -Steven Pro> 140 Gallon Leaker Hi, I have looked but don't see the answer that is quite like my problem. I have an 140 gallon tank that I have had for 8 years. I raise African Cichlids in it. Last night went upstairs and see a fine stream of water coming out of the tank about halfway down. If I didn't know better I would say someone stuck a pin thru the silicon seal. How do I fix this? Thanks, Mike Melcher <<Hello, You need to slowly drop the level of the tank until it stops leaking, so you can find out exactly where the leak is. Use a bath towel to keep drying the outside so you can pinpoint the exact location of the leak. Then you must try to fix it. Lower the water level a bit more, then take a sharp blade to scrape away the silicone inside the tank, then wipe with a bit of rubbing alcohol to clean and dry it, then you can re-seal it with new silicone. Make sure you follow the directions carefully! Silicone must cure for 24 hours before you can re-fill the tank. If, after you do this, the tank continues to leak, you will need to drain the ENTIRE tank and completely re-silicone it. Make sure the tank is still level, after 8 years something may have changed. The tank must be level or more leaks will appear. -Gwen>> <Mmm, RMF suggests going ahead and draining, removing all... drying, removing all internal Silicone and re-doing ALL the inside seams... you will find (as I have on a number of occasions) that the apparent "origin" of such leaks... is not at all where they seem... The only means to fix such possibilities is to remove and replace all.> |
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