I currently breed Rosy Barbs in a 2FT cube tank ( 9 females and 1 male) I also keep a colony of L046 zebra plecos in a 4ft x 1.5ft x 1ft tank which Im growing out for breeding. They are currently about 2 years old. I also keep guppies [cos theyre real cute ] hehe a 4ft x 2ft x 2ft tank for discus and khuli loach and clown loach and one 3ft x 1ft x 1ft tank with some random fish i rescued etc [Uaru, sajica, cupido, armored catfish, sailfin pleco] I am obtaining one more FINAL tank [till the next one! lol] It will be 4ft x 1ft x 1.5ft and am wondering... WHAT SHOULD I KEEP? or breed in it. I considered keeping an arowana of some kind with a ray for the bottom layer or perhaps breeding something.. any ideas??