Freshwater Fish Angel Pterophyllum scalare Guppy Poecilia reticulata Platy Xiphophorus maculatus Swordtail Xiphophorus hellerii Fighter Betta splendens Molly Poecilia latipinna Molly Balloon Poecilia latipinna Goldfish Carassius auratus Koi Ciprynus carpio Danio Danio rerio Places Suckermouth Catfish Pterygoplichthys multiradiatus Silver Dollar Metynnis hypsauchen Red Pacu Piaractus brachypomus Catfish Siluriformes Shark Balantiocheilos melanopterus Rainbow Melanotaenia praecox Gourami Osphronemidae Dwarf Gourami Trichogaster lalius Barb Puntigrus tetrazona Cichlid Cichlidae Peacock Malawi Aulonocara / Melanochromis Oscar Astronotus ocellatus Discus Symphysodon aequifasciatus Arowana Osteoglossum bicirrhosum Alligator Atractosteus spatula Black Ghost Knifefish Apteronotus albifrons Elephantnose Gnathonemus petersii Bichir Polypterus senegalus Freshwater shrimp Arapaima Arapaima gigas Apple Snail Yellow Pomacea bridgesii Brackish Water Fish Algae Eater Golden Gyrinocheilos aymonieri Ocellate River Stingray Potamotrygon motoro Tetra Crayfish Procambarus clarkii