I'm looking at getting an African tiger fish (H. brevis). Does anyone here have experience with these fish? I heard they max out at about 30 inches, so I'm thinking about building a tank that's 8 feet long, 4 feet wide, and 2 feet deep- is that enough space? I'd like to go smaller if i can. Either that, or a metal framed swimming pool. So, what, how much, and how often should they be fed? Thanks in advance for the help!