6 ) With all the pieces in place and the tank constructed, run a thin but adequate solid line of silicone into the eight joint areas on the inside of the tank, then run your thumb over the silicone from one end to the other of each seam, preferably in one continuous motion, to smooth the silicone down and force it into the joint areas. (Install the "brace(s)" here, if adding one).
7 ) Allow the silicone to cure for 24 hours.
8 ) Refill the tank with fresh water and allow it to sit for at least 12 hours, 24 is better. This gives you a good test period, and you will feel much more confident of success when you finally fill the tank with saltwater, put it all back together and add your inhabitants. If you find that something happened and you have a minor pin hole leak, you can fix this by following our simple instructions for repairing small leaks.
