The Africans have their own 55 gallon tank. The gouramis are in a 20 gallon, but I am getting a bigger tank for than in a few days. Info below. My question is can I keep Killifish with them and the Rummynose and cories in the tank with them. No new info on them, but went back farther and they seem to be aggressive. Would really like a gardeners, found them for? $3.99/each! Also, would love a Loach for the African...any suggestions?