Sealant

[WarDog]

Originally Posted by FishyFishy!

Zip ties are fantastic for this.

This.

Also, only use Aqueon silicone available at J&L, or GE SCS1200 for aquarium silicone.

[hillegom]

Originally Posted by WarDog

This.

Also, only use Aqueon silicone available at J&L, or GE SCS1200 for aquarium silicone.

What Warren says because the other silicone has chemicals that inhibit mold growth which will adversely affect your fish.
As well, zip ties are available that do not have the stainless metal in it that locks the tie