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Biocube Problem

Discussion in 'Newbies Corner' started by goodness, Jul 7, 2017.

  1. goodness

    goodness Copepod

    I got my gf a used Biocube off Craigslist earlier this year for her first tank and everything has been pretty good with it. However I just discovered last week that the back wall was separating from the glass. It only slight effect flow until today. I picked up a beautiful bta from a fellow forum user and it had part of its foot stuck into the hole. If I had not noticed late tonight I'm sure it would have been lost into the back/crushed by the small crack it was in.

    Fortunately I was able to free it but I'm worried about this happening again or causing other problems in the future.

    Do I need to drain and resilicon the seam?

    Would getting another Biocube be a better deal, if anyone has one to give away/ cheap. We are both college students and I can't afford a replacement tank currently.
  2. Balz3352

    Balz3352 Marlin M.A.S.C Club Member

    Back wall being the part that separates tank and filtration area?
    If you could drain filtration area and silicone there you should be fine. But im wondering why it bowed so much to separate from that part.

  3. JuanGutz

    JuanGutz Marlin M.A.S.C Club Member

    It's very common in aio over time for the back wall to separate. Best thing you could do is make a temp tank for your livestock and drain the tank. Re silicon and then fill up with fresh salt water. Only draining the back will cause it to bow with all the pressure being in the front.
  4. goodness

    goodness Copepod

    Yes the filtration area wall and the main tank area. I'd have to drain the whole thing I think
  5. TheRealChrisBrown

    TheRealChrisBrown Tuna Staff Member M.A.S.C Club Member M.A.S.C. B.O.D. B.O.D. Member-at-Large

    What size biocube are we talking about here?
  6. goodness

    goodness Copepod

  7. TheRealChrisBrown

    TheRealChrisBrown Tuna Staff Member M.A.S.C Club Member M.A.S.C. B.O.D. B.O.D. Member-at-Large

  8. JuanGutz

    JuanGutz Marlin M.A.S.C Club Member

    Should only need 24hrs for it to cure and make sure you fill up the front and back equally.
  9. Balz3352

    Balz3352 Marlin M.A.S.C Club Member

    If you need to borrow a 20l I got one you could use in the intrum
  10. zombie

    zombie Tuna M.A.S.C Club Member

    I would play it safe and do 2 days instead of 24 hours. Silicone can get fully submerged after 24 hours, but can take several days to reach 95% strength. Make sure to use structural silicone and completely remove the old silicone on the side that's leaking before applying new or it will just split apart again.

    You might be an engineer if...You have no life and can prove it mathematically.
  11. goodness

    goodness Copepod

    thank you for the offer, and thanks for the advice everyone else.

    I ended up proping it with a piece of egg crate. It's pushing the wall forward so that no water is going through.

    Once I get a car again I may take you up on the tank offer. Someone totaled mine a bit ago

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