Very good thread. Very accurate statement about the wish. I bet there aren't many who would want only 2 or 3 species forever.

According to my experience, grass shrimp are under utilized as a forage species. They are great breeders, and survive droughts well. All fish feed on them with relish. Down side, they need some areas with grass and weeds for cover.

Grass pickerel are probably a little finicky, but this little fresh water barracuda is very acrobatic when hooked on a plastic frog. Down side, (I have heard and deduced) they need clear water with plant cover.

Shrimp