Pond Boss Forums MANAGING AN EXISTING POND Evaluating and adjusting fish populations Red ear (shellcracker) sunfish and zebra mussels

Freshwater drum also feed on zebra mussels... However, even with freshwater drum, blue cats, gobies and a pile of other things eating them, they cannot keep up with their reproduction rate. Chris hit it on the head, RES don't tolerate cooler water where Zebra mussels are most problematic.