40 Gallon Breeder with 55 Sump

I hear ya, it isn't going anywhere though. If it were the case, why wouldnt one worry about the seals in every rimless tank. The silicone is fully cured n has more than enough strength for the 2.5" of water that sits in it. All the plumbing is secured and not weighing down on the box either.
 
Oh yes! Of course. I used regular petco silicone for the inside box, because I was impatient. But I ordered RTV online, and used that for the outside box
 
I thought they sold it at home depo ...100% silicone ..yea i definitely have to build me some boxes and do this over flow on my 40 breeders
 

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WHICH PART OF YOUR SETUP IS HARDEST TO REACH OR REMOVE FOR ROUTINE MAINTENANCE?

  • Glass behind or beside the tank

    Votes: 16 21.6%
  • Powerheads or wavemakers

    Votes: 6 8.1%
  • Sump or rear filtration chambers

    Votes: 10 13.5%
  • Skimmer or other filtration equipment

    Votes: 9 12.2%
  • Overflow or plumbing

    Votes: 12 16.2%
  • Lights or lids

    Votes: 0 0.0%
  • Mine is pretty easy to access!

    Votes: 20 27.0%
  • Other—tell us what I missed

    Votes: 1 1.4%
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