I have only reef tanks. It works fine in a reef tank. So if it works in a reef it will also work in a fish only.
As to cleaning it, yes, I supose it can easily be cleaned......For one thing, I certainly would not assume just because its bagged and marked for aquarium use its any cleaner than what can be gathered up locally, and odds are its gonna certainly be much cleaner than any of the stuff folks use like Southdown and old castle etc,. I just do not buy nto all this hype just how sensitive marine life and systems are, and lots of other stuff too. Yes within reason is onethng but to go so far out of reason is absurd. I have played with marine setups for years now and have yet to have half the problems you read about here on these forums, and thats coming from folks using approved stuff for aquariums too......Some folks are afraid to wipe with a unknown paper if their regular TP runs out, for fear of contaminating the sewer system..
Bottom line.if your near the beach, use it, and don;t worry about it. If you want to "sterilize it, fine, thats yur ball game but in the process you will kill any beneficiasl criters......to clean it just take a mix of water and chlorox (10% mix is fine) and put the sand in it, aloow to soak for ahwile, (30 minutes to an hour or so) then rinse well and spread out on a plastic sheet or other flat surface to dry in the sun. And yes chlorox looses its properties in a short period of time when exposed to air and sun so within 24 to 48 hurs its inert. Or you can always add a dechlor.
