i used playsand for like 3 months it was the worst 3 months of my life.. it kept turnin black ans smellin like a sewer.. i was cleanin and movin the sand around every week.. i took that junk out...
i have a 75 gallon with clown loaches and angel fish.i hav 100 pound play sand in it and have big river rocks in it the river rocks turned black where they were in the sand. why is it doin that?