What Size Tank Do Cory Catfish Need? For dwarf species, a 10-gallon aquarium may be suitable, but we recommend 20 gallons or more for most other varieties. As a relatively small fish, they crave safety in numbers, so a group of six corydoras or more (all of the same species) is highly suggested.
RECOMMENDED TANK PARAMETERS:
Temperature: 70° - 81° F (21° - 27° C) pH: 5.5 - 7.5.
