Native Tank?

I'm not trying to highjack but I'll stick a few pics of mine too. Might help you to decide to go for it :) Green sunfish and red breast

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I have kept pygmi sunfish in the past but always end up releasing them after noticing that they seem not to eat anything I have to offer. I know they eat copepods and will clear out a tank quickly. Is there a readily available food source for these guys?
 
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