African cichlids tend to be highly territorial, and they will struggle and even eliminate each other if you retain the wrong species, in the incorrect figures, or in the incorrect tank setup. They also have to have tricky, large-pH h2o to prosper, so they aren’t the only option for beginners. https://pearlaquatics.my/how-does-an-aquarist-maintain-their-aquarium-tank-fish-pond/