Oddball;483766; said:There's a federal ban on zebra mussels. You don't want them anyway. Mussels are not an invert of choice for other than a single-species tank. Mussels go through a parasitic stage of their life cycle by attaching themselves to the gills of fish and forcing the fish's systems to encyst the mussel larvae while thet grow.
sandtiger;484086; said:Not all mussels have a stage like this, zebra mussels are not parasitic.
I would not keep them in a tank though. I actaully had some once, not with fish but with newts. They came in on some wild plants I collected and quickly took over the entire tank, worse than snails. If you want something similer try freshwater clams, I collect these quite often and also live in NY, they are about the size of a thumbnail.