My sculpins don't move for days unless a minnow swims by their mouth. My pumpkin colony is ready for a bigger tank and some of my favs.
In reality it seems the fish I expect the most from turn out to be the least active and interesting. The bluntnose minnows and shinners I collected to pretty much cycle and learn to keep natives turned out to be awesome. They were abundant and I wasn't too worried about losing them.
I see no use in trying bass,, walleye, big cats or essox. They are never going to be happy and just slowly waste away. It's much more challenging to keep a multi species slighty overstocked tank with balanced agression. Then watch all heck break loose when you dump in a couple dozen minnows.
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