I live on a lake and I was wondering if I went out back and caught a few minnows could I add them to one of my tanks and keep them as a pet? o and can I do the same with a plant that I found living in the lake? the fish I might want to add would be sunfish, crappie, bass, and catfish. these fish would all be 1-2 inches and I would only keep them for a month or 2 then ill go find some more. the main thing I'm worried about is the temperment of the fish and that the minnows might have some disease on them that would hurt my fish. any ideas of if this would be ok. they might get there own tank and I would use lake water and put leaves, sand, and seaweed to make it seem more homey for them.