Sudden Leak - Why?

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BraddP

Feeder Fish
MFK Member
Nov 9, 2010
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Central PA
I am probably just posting to hear myself think in a rough situation this morning, but my girlfriend just woke me up because she literally heard the fish tank start leaking while she was getting ready for work.

This is a Top Fin 55 gallon marine tank purchased at PetSmart in June. So yes, it is 5 months old. It has been in a corner of my home since, not abused or banged around, and since my last tank sprung a sudden leak, I have been babying this one as far as cleaning it, etc.

The ironic thing is, the leak happened around the same spot as it did in the previous identical make.model tank, 3/4 of the way down on the front right seam (it is not a seamless corner tank, 2 joins in the front, which I realize is not as ideal as a curved glass front).

I realize that Top Fin is considered the lowest of the low when it comes to aquariums, but still, this is unusual right? My last Top Din tank from Petsmart (identical 55 hex corner tank) lasted 10 years and that was among heavy abuse cleaning the seams with a scrub brush.

Anyway, the sprung leak is so big it's spraying in an arc around 2 feet away from the tank and has already leaked about 4 inches of water in an hour which I am catching in a giant plastic tub to re-use.

At this rate I'm going to guess it will leak 30 gallons down to the leak spot in 5 hours. So this is no small leak, and it happened out of the blue just like that.

What I'm wondering I guess, other than the low quality tank (which IMHO still shouldn't do something like that, I don't care how cheap the tank is), is there anything else I could be missing here? I haven't hit the tank seams with anything, bumped rock into it...The fish inside are the same fish I had living in the last tank for 10 years, only one larger fish (foxface rabbitfish) and the others small -- I do fill the tank almost to the top but again did that with the last one too and that took 10 years to leak.

My plan is to go to PetSmart and get a replacement and do a total fish/water/gravel/rock swap, and bring them back the defective, not what I planned for my Tuesday, but now I'm feeling paranoid that it will just happen again.

Just bad luck? I'm just beside myself because my last tank sprung the leak in June when I got this new one, this one took only 5 months to do the exact same thing. :(
 
I kinda think you just got some bad luck. I'm sure the tank was level, you would be able to tell when full by the water line.

The glass didn't crack so it was just a poor quality seam.

I don't think it was your fault.
 
If the tank was even slightly off level would that cause that to happen? I can re-check it when I replace it but even if it wasn't perfectly level it would be only slight, it's not like it was slanting way forward or anything. I'd have noticed that.
 
just be thankful it wasent a DIY 75 gallon tank :duh: Do you have any fish in the tank at the moment. I think you should let it drain and get some silicon caulk stuff at a hardware store and seal up the leak.
 
Yeah it's full of fish, live rock, substrate, etc. I just set it up back in June after the last tank leaked.

The last tank I did try to seal and refill, but then it just sprung a leak in a different spot. So it's tough to convince myself to just try to seal it again. Plus the tank is BRAND NEW basically, I will probably just deal with the hassle of transplanting one last time for the (hopefully) peace of mind this third tank will actually last.

What's shocking is the size and speed of the leak, you'd think it would be a small trickle or pinhole but this thing is a geyser, and it literally just popped without any provocation, no one was even near the tank.
 
What kind of stand is it on? How did you check it for level? How did you shim it? What kind of surface is the stand sitting on? Can you show us some pics? Sounds like a problem with the stand. If there is any twisting or un-flatness in the seating surface, it can cause the tank to flex in weird ways and put undue stresses on the seams and cause it to fail. If it happened once, it could just be a faulty tank. But for two to fail in the same way seems to point to some kind of setup problem.
 
It's on a wood stand in the corner, the matching top fin stand that Petsmart sells with the squarium.

Been in this very spot for the past 10 years. The first leak I figured was just wear and tear on the seams but this one definitely scares me. I am going to check it for level. No shim involved, just sat the wood stand right on the carpet.

Pics shortly.
 
Here's some pics.

Keep in mind this leak happened out of the blue this morning, went from nothing to this severe of a leak in an instant.

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wow that sux, but seams r easy to fix in my expeiriance i actually caulk up all my tanks even if they dnt need it before i use em as a precaution
 
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