the aquarium have 39.4'' x 15,7'' x 15,7''.
About the piranhas serrasalmus elongatus is a good idea... but about the african cichlids, i don't like it very much because my idea was more like a single big speciment aquarium... but thanks for the opinion
so... now i have two fishes in mind: JD and serrasalmus elongatus... any more ideas?