calci-sand is this stuff reef safe i would guess its prolly not but just had 10pds of it gave to me and was going to use but wanted to ask everyones opinion before i do any thing
T-Rex makes it im guessing that if i put it in my tank that it will dissolve and make my calcium sky rocket. i wanted to do with this is mix it in with agrocrete to make some caves and rocks.Im fairly sure that this is lizard sand
