Dwarf fish including Guppies and Danios, Corydora catfish, pigmy suckermouths, teams of barbs or tetras Plecostomus catfish, or simply plecos for brief, are a substantial team of South American Catfish that hold out on The underside of lakes and rivers and graze on rocks and driftwood. Plecos are great algae https://pearlaquatics.my/how-to-maintain-a-freshwater-aquarium/