thanks everyone for the suggestions. I looked into wolf fish, and they looked pretty nasty. I wasn't really looking for a school of fish, more like a 2-3 ridiculously eerie or angry looking fish lol. Definitely taking African Pikes and wolf fish into consideration. Is it true that most characins, like cudas besides getting large, dont live very long due to such strict water conditions needed? oh, and i will also be posting a pic of the tank as it is set up now with the gouramis and random fish in it from when it was a turtle tank.