Originally Posted by jetajockey
I'm sure the store stuff has been through several stages of filtration to remove any hitchhikers. I do worry about being overrun with nuisance bits and bobs, but I guess we'll see how big of an issue it's going to be.
Running it through a large UV
sterilizer would address this I think...I want to say that I read a thread about a guy who only used natural water. He kept it in bins that he would UV
sterilize, like Petco does, for a month or something like that.
As for the rock, you could just boil it...maybe the sand as well.