Capping mineralized soil This might be a dumb question, but is there some kind of calculation that can be used to figure out how much substrate is needed to cap mineralized soil? I'm setting up a 54 gallon corner tank, which makes trying to calculate this even more difficult. I'd like to use Eco-Complete, since I can't find any other cheap, dark substrate locally. Because of the cost, I'm a little concerned about overestimating. Any advice? |