It's fluorite not sandWith play sand you want to rinse it first until the water is clear otherwise your in for alot of water changes playsand has a lot of dust and debris all of my tanks have it roughly total 100lbs worth spread out through 3 tanks all of the sand took me maybe and hour to an hour and half cleaning in a tote with a hose. Very much worth doing once i did that my water was never once cloudy
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