Why is it most people use low frag tanks. ie 10” and under. Wouldn’t it benefit to have a higher tank for more levels or is it a manufacturing gimmick? All premanufactured “frag tanks” I see are roughly 8-10”. I’m using my old 29 gallon that’s 18” high and have 3 tiers spaced 4” apart and it seems to work good with some corals preferring high light while other frags do best lower. The ones up top and in the middle in high flow and the bottom shelf and bottom of the tank with low flow.


