Can anyone tell me if this stuff is toxic to animals. I know it is ok to have in the water, but what if they come in direct contact with it. I had a bunch in a bag in my tank, and the bag ripped, so it sprayed EVERYWHERE. Do i need to syphon out a ton of sand to try and get it out, or just call it really expensive sand? I know if I leave it, the phosphates will leach back out, but I dont want anything to die as a result of this. Thanks. Bobby