Can I Keep School Fish In 20 Gallon High?
Can I Keep School Fish In 20 Gallon High? Platys. Cardinal tetras (Paracheirodon axelrodi) Zebra danios (Danio rerio) Red-tailed sharks (Epalzeorhynchos bicolor) Pygmy sucker catfish (Otocinclus vittatus) Bronze corys (Corydoras aeneus) How many fish should be in a 20 gallon tank? Usually, the rule of thumb is an inch of fish for every gallon of