I have kept mussels and crayfish (marmokrebs) together before and the crays attacked the mussels, primarily chewing on the mantle. I only had about a dozen mussels in the tank and I believe the crays killed most of them, though the mussels did manage to reproduce and a few young survived. I believe the host fish was a creek chub.
Perch are, as yet, outside my realm of personal experience. But I have to imagine they would eat any crayfish they could get their mouths around. They might cohabitate well with larger crayfish - you could grow out your baby crays in (an)other tank(s) and transfer them to the big tank once they are big enough. Just some thoughts.
You're very welcome! :D So, in Texas, red ears are native but not bluegill?
You're very welcome! So, in Texas, red ears are native but not bluegill?
I've caught bluegill/redear together quite a lot and haven't noticed that redear are smaller. This link suggests otherwise too. I don't know anything about redear in tanks but do have bluegill here.
Dave Durkin said:
Ellen: Yes, redears are considered native but since they are so small I think my family would starve so I will most likely stock Coppernose blugill or, perhaps, channel catfish. Regards.
Just my take on it ... but if you are lucky enough to get fry broke to flacks, and then to pellets, I would NOT attempt to tease the Predator with a 2nd food source. They may go off Pellets on you and you would have to add a Minnow tank to feed fish. I have a list of the most often used Species of fish for Aquaculture ... even Carp are on it, Salmon, Lake Trout, Brown Trout ($$$ Money Maker $$$), and a few others. Google it and you should be overwhelmed by what you can read. I wanted Grass Carp so I could put 1 or 2 in each tank to help on cleaning green growth off tank, but DNR got real stern and told me they were illegal in Michigan and to have one was a Federal Offense.