well i plan on purchasing a 240 gallon from glasscages.com and I am interested in keeping larger cichlids in it. Possibly a red devil, flowerhorn, texas, midas, and possibly some others. I've seen this done before in smaller tanks such as a 110. I'm just wondering what is the best way to go about something like this? How do I keep the fish from killing each other and what else would be good for a tank this size?