Nihilist
Hatchling Member
I have a 40 gallon breeder tank, of course it says its 36" x 18" x 18" but that's on the outside. I measured to the best of my abilities, which isn't saying much, and I came up with 35 11/16x17 11/16 for width and length. Figured I would go with 35 5/8 x 17 5/8 to give me a little room on the sides to make it easier to put in and pull out. Going to try and do it with two or 6 tiles. For anyone that has done this before does it sound like it would work? Or should I leave more room on the sides?