Dwarf fish including Guppies and Danios, Corydora catfish, pigmy suckermouths, teams of barbs or tetras Plecostomus catfish, or merely plecos for brief, 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 wonderful algae https://pearlaquatics.my/product/sobo4x1-5x2/