Top 22 Small Fish for Your Freshwater Aquarium - best beautiful small fishes nano fish for 5 gallon aquarium -nano fish species Looking for a small addition to a new or existing freshwater aquarium? We have the best of the small aquarium fish species for your tank. All of these fish grow to less than 3 inches, but note that many of these species do best when kept in a small school of a minimum of 3 to 5 individuals. Before adding new fish species, do your research thoroughly to make sure the required environmental parameters of the new fish species match the existing conditions in your aquarium and that all the fish are compatible. All new fish should be quarantined in a separate tank with separate equipment for 4 to 6 weeks to prevent the introduction of disease.
1 Mickey Mouse Platy 2 Guppies 3 Zebra danio (Zebrafish) 4 Neon Tetra 5 White Cloud Mountain Minnow 6 Harlequin Rasbora 7 Serpae Tetra 8 Panda Corydoras 9 Glowlight Tetra 10 Pea Puffer 11 Tiger Barb 12 Swordtail 13 German Blue Ram 14 Buenos Aires Tetra 15 Dwarf Gourami 16 Gold (Chinese) Barb 17 Betta Fish 18 Hachetfish 19 Congo Tetra 20 Beacon Fish 21 Black Phantom Tetra 22 Black Ruby Barb
