update: the bass and chub died due to lack of oxygen. they now have 3 adult crawfish and a few native killifish in a 5G. two of the crawfish killed the third and are now snaking on its body. also for the big shock, a baby flathead(i seriously have no idea how the caught this but i really want to know), a few mad tom catfish and some other small guppy fish. all of these are in a normal 20G tank. about half full with no water.