hi iv just got a 370 litre tank its fully planted sand substraight floating plants caves 2000ltre an hour filter fully cycled with spray bar as you may know i have other tanks one community and one with my moray eel (for sale on here ) what i wont to do is find out what type of preditory fish i can keep in this tank. The only preditory fish i have ever kept was a pair of oscars and that was a couple of years ago but they are a possabilty although i would like to try somthing new and sugestions ??