This link might be helpful. http://cichlid-forum.com/articles/calculator.php At the very bottom is a sand calculator. I used about 65 lbs in my 75 gallon(same footprint), but that was with sand. I don't know what the weight/mass ratio is with the soilmaster stuff. Laurel On Mar 13, 2008, at 11:05 PM, Phil Lacefield Jr. wrote: > Okay, okay, all this talk fo the super-special sand has me convinced > that I > need to break down my 90 community tank (the one where most of the > plants > I've been buying end up) and redo it with this Soilmaster stuff. > Anyone > have a clue how much I'd need to properly cover the bottom of a 90? > > Thanks - Phil > _______________________________________________ > GSAS-Member mailing list > GSAS-Member@thekrib.com > http://lists.thekrib.com/mailman/listinfo/gsas-member _______________________________________________ GSAS-Member mailing list GSAS-Member@thekrib.com http://lists.thekrib.com/mailman/listinfo/gsas-member