Dwarf fish for instance Guppies and Danios, Corydora catfish, pigmy suckermouths, teams of barbs or tetras Plecostomus catfish, or maybe plecos for short, are a considerable group of South American Catfish that dangle out on the bottom of lakes and rivers and graze on rocks and driftwood. Plecos are excellent https://pearlaquatics.my/product/venusaqua-floating-magnetic-glass-cleaner/