Emperor Tetra

The average adult Emperor Tetra size is only around two inches in length, making this a rather small freshwater species. Some owners have reported lengths closer to three inches, but that’s typically only possible when kept in very large tanks (and even then it’s not a guarantee). Most will stay on the smaller size in a captive tank regardless.

Emperor Tetra care is very simple, which is one of the main reasons why they’re so popular with aquarists. This means they’re not only beautiful, but very low-maintenance. These fish are hardy and generally undemanding when it comes to food. Emperor Tetras are tropical species that thrive in typical freshwater conditions. However, that doesn’t mean that you should take their care lightly! Here are some established care guidelines that you should follow to keep your fish healthy.