Aquariumpro
🔍
← Back to species
FishFreshwaterIntermediatePeaceful

African Moon Tetra

Bathyaethiops caudomaculatus

Also known as: African Moonfish

A peaceful Congo schooler wearing a glowing crescent on its tail.

African Moon Tetra
AI-generated illustration
© Google Gemini 2.5 Flash Image · AI-generated

About

The African Moon Tetra (Bathyaethiops caudomaculatus) takes its name from the luminous crescent-shaped marking near the base of its tail. A small but distinctive feature that sets it apart from most other African tetras. In the wild, this fish is found across a broad stretch of central Africa, including the Congo River basin, the Sangha River drainage spanning the Republic of Congo and Cameroon, Pool Malebo, and Lake Tumba. That wide natural range hints at a fish that is reasonably adaptable, though it does best when water conditions lean toward the softer and slightly acidic side. In the aquarium, African Moon Tetras are gentle, undemanding fish that spend most of their time near the upper levels of the water column. Like most schooling species, they really come into their own in larger groups. Six is a workable minimum, but a dozen or more will show much more confident, natural behavior and look considerably better for it. They coexist well with other peaceful community fish of similar size. Diet is straightforward; they accept a wide range of prepared and live foods without fuss. This is an intermediate-level species more because of its water quality preferences than any particular difficulty in keeping it day to day.

Frequently asked questions

How big does the African Moon Tetra get?
The African Moon Tetra reaches about 2–3" as an adult.
What size tank does the African Moon Tetra need?
A minimum of 20 gallons is recommended for the African Moon Tetra, with more room needed for a proper group.
What water parameters does the African Moon Tetra need?
The African Moon Tetra does best with a temperature of 73–81°F, a pH of 6.3–7.3, hardness around 5–12 dGH.
Is the African Moon Tetra aggressive?
The African Moon Tetra is generally peaceful and suits a community tank with similarly calm tankmates.
What does the African Moon Tetra eat?
The African Moon Tetra is an omnivore. It does well on a varied diet of quality flake or pellet plus occasional frozen or live foods.
How long does the African Moon Tetra live?
With good care, the African Moon Tetra typically lives 3-5 years.