Dwarf fish for example Guppies and Danios, Corydora catfish, pigmy suckermouths, groups of barbs or tetras Most Central and South American cichlids could be kept with many different aquarium plants, but African species are more challenging to pair as a result of water parameters. It isn't really unachievable however! Check https://pearlaquatics.my/reasons-to-maintain-your-aquarium/