I have pumpkinseeds, which are a type of bluegill, as well as a number of small largemouth bass in a tank. I actually think the bluegill are just as pretty as most other tropical fish. I caught them all at a pond near my home. At first, I had to feed them worms or frozen krill, but now they all eat floating cichlid pellets. They're a lot of fun to have. Another neat thing is they don't need a heater. I've never tried trout, but I have heard they are a bit harder to keep. I believe they need extra oxygen, but can't be sure on this. I have several local crayfish in the bottom as well, along with a bunch of very large snails I found locally and several freshwater clams.
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