Max Size: 8cm

Redfin Congo Tetra (Micralestes occidentalis)

Redfin Congo Tetras are active, peaceful, hardy and timid schooling fish suitable for beginner aquarists and community aquariums. These Tetras typically stick in large groups in the wild. Therefore, you must keep these fish in a group of at least six individuals. Keeping these Tetras in more significant numbers will make your fish more confident, resulting in a better-looking display.

Ideal tankmates for Redfin Congo Tetras can include other Tetras, Dwarf Barbs, various peaceful Cichlids, Rainbowfish, Loaches and Corydoras Catfish. However, it would be best if you did not keep Congo Tetras with much larger species and more boisterous species due to their nervous nature.

The ideal aquarium setup for Redfin Congo Tetras would be an African biotope design with driftwood branches, floating vegetation and Anubias. However, they will also appreciate a well-planted aquarium. In addition, these Tetras will need plenty of swimming space and prefer soft and acidic water with excellent circulation. These Tetras can get scared relatively quickly, so you should also ensure your fish have places to hide when stressed.

Redfin Congo Tetras have silver bodies with bright red caudal and adipose fins. These Tetras also have transparent rayed dorsal fins with a reddish blotch whilst All their other fins are transparent.


Redfin Congo Tetra
Quick Facts
Scientific NameMicralestes occidentalis
Year Described1899
Other NamesAfrican Red-Finned Tetra
OriginsCameroon, Ghana, Liberia, Sierra Leone
Aquarium LevelMiddle - Top
DifficultyBeginner - Intermediate
Best kept asGroups 6+
Lifespan3 - 5 years
Water Parameters
Water TypeFreshwater
PH5.5 - 7.5
GH5 - 15
KH4 - 8
TDS150 - 250
71 - 79℉
21.7 - 26.1℃


In the home aquarium, the Redfin Congo Tetra will readily accept most good quality dried foods such as granules, flakes and sinking pellets. These modern food products have been developed to provide all adequate nutrition to maintain your fish's health and dietary requirements.

Providing additional foodstuffs such as live, frozen, and freeze-dried meals such as bloodworm, daphnia, and tubifex once or twice a week will provide additional benefits to your fish's health and well-being but is not a must for this fish.

It should be noted that bloodworms should only be given as an occasional treat and should not be used as the staple diet as they are difficult for fish to digest and can potentially cause blockages.

This fish is an omnivore in the wild, meaning it will consume some vegetable matter. Although most modern fish foods take this into account and include them in their products, you can still supplement your fish's diet with blanched vegetables such as spinach, broccoli, and zucchini. Ensure you do not overfeed your fish and remove any leftovers the following day.

Sexual Dimorphism

Unfortunately, there isn'tisn't much information regarding the sexual dimorphism of the Redfin Congo Tetras; however, males will more than likely be larger and more colourful than the females and will probably have longer finnage like other Tetra species.

Other Tetras of interest

Adonis Tetra(Lepidarchus adonis)
African Moon Tetra(Bathyaethiops caudomaculatus)
African Red Eyed Tetra(Arnoldichthys spilopterus)
Arowana Tetra(Gnathocharax steindachneri)
Black Darter Tetra(Poecilocharax weitzmani)
Black Line Tetra(Hyphessobrycon scholzei)
View all Tetras
Date Added: 16/01/2023 11:00:35 - Updated: 16/01/2023 14:35:50