Dwarf fish for instance Guppies and Danios, Corydora catfish, pigmy suckermouths, groups of barbs or tetras Plecostomus catfish, or perhaps plecos for short, are a sizable team of South American Catfish that hang out on the bottom of lakes and rivers and graze on rocks and driftwood. Plecos are wonderful https://pearlaquatics.my/product-category/air-pump/