Ive received a few messages lately about my use of Black Mollies in my SW tanks. I ve found quite a few uses for them here are some of them: Cycling tanks ive cycled three SW tanks with them very hardy just acclimate them to salt slowly. Feeding fish, Mollies are live breeders and they breed constanly so there is a constant supply of frye in the tank, of course you might get tired of the parade of fish following the females around. Movement in the tank if you just cant wait to get a fish in your tank put a couple Mollies in there. Their cheap about $1.50 a piece anywhere and they are very hardy, peacefull and will eat out of your hands. They are not excactly beatifull and are not exotic, but very simple to maintain, and the salt is good for them.