I just purchased a baseball size clump of java moss to put in my 16g bowfront. I bought it from an unknown seller on ebay. I noticed when i got it that it has "one" snail on it. What do I do to keep these from overtaking my tank. Right now I have the moss anchored to a river rock and in a bucket of old tank water. Should I put it in my tank???? I have 2 cory catfish and 5 neon tetras in my tank and some amazon swords. My parameters are temp 76, ph 7.2, ammonia 0, nitrite 0, nitrate usually 5-10. thanks!