I've decided that I'm going to set up a large aquarium. It's going to be between the 200-250 range. I'm going to give it the great them of the prehistoric times. I will definitely add Gars, which are awesome, but also a bichir or two, an arowana, knifefish, ropefish, maybe something else. I want some good ideas for a prehistoric themed tank. Maybe some ideas for cleanup crews because I can't find any that are really prehistoric. Different plants or logs or rocks or any other ideas for a Jurassic Aquarium.