African cichlids are generally really territorial, and they're going to struggle and also get rid of each other if you retain the wrong species, in the wrong figures, or in the incorrect tank setup. Additionally they want challenging, large-pH water to thrive, so they aren’t the best choice for novices. https://pearlaquatics.my/how-to-choose-the-best-sobo-aquarium-pump-for-your-aquarium/