My bro has a 170 Gal. tank , I think he got like 20-30 of them , 3-5" , How much can he put in his tank ? Thanks
^^;; I've got 100 G tank w/ 50 fishes without any problems. I have 400G worth of filtering running though. My fishes are 4-6 inches and I do Weekly 20% water changes.
If they are small sized african cichlids this is very doable. They tend to do better in larger quantities because it spreads the aggression. If they are SA/CA type cichlids your looking for trouble doing that many as they tend to grow bigger and want more space.