Dwarf fish like Guppies and Danios, Corydora catfish, pigmy suckermouths, groups of barbs or tetras Plecostomus catfish, or maybe plecos for short, are a large team of South American Catfish that hold out on the bottom of lakes and rivers and graze on rocks and driftwood. Plecos are great algae https://pearlaquatics.my/4-things-to-check-before-approaching-an-online-aquarium-store/