Max Size: 4.5cm

Rainbow Copella Tetra (Copella vilmae)

Copella Rainbow Tetras are peaceful and fascinating little fish. They are easy to take care of and a pleasure to breed. The only disadvantage is that these Tetras are pretty scarce and are rarely offered for sale.

Copella Rainbow Tetras are shoaling fish; therefore, you should maintain them in good-sized groups of eight to ten individuals. Keeping these fish in more significant numbers will make your fish less skittish and give you a more natural-looking display. However, due to their relatively small adult size, you must take care when choosing their tankmates. Larger, more boisterous fish easily threaten these Tetras, and you should not house them with anything that would consider them a snack.

Ideal tankmates for the Copella Rainbow Tetras could include smaller species of Dwarf Cichlids, Pencilfish, Corydoras Catfish, Killifish and other small blackwater Tetras.

Copella Rainbow Tetras are small, slender fish with pinkish-red body colouration. In addition, these Tetras display a very broken stripe that almost looks like separate dark patches on their bodies.

These Tetras have a rather large and upturned mouth with acutely pointed teeth and a dark band starting at the snout running to the eye, which can continue through to the operculum on some species. In addition, their dorsal fin has a red flash of colour on it as well as a dark blotch.

Their caudal fin is extremely forked, with the upper lobe being vaster than the bottom lobe, which also has a red flash. Their adipose fin is absent, and they use their large pelvic fins when spawning.


Rainbow Copella Tetra
Quick Facts
Scientific NameCopella vilmae
Other NamesNone
Aquarium LevelMiddle - Top
DifficultyBeginner - Intermediate
Best kept asGroups 8+
Lifespan3 - 5 years
Water Parameters
Water TypeFreshwater
PH4.5 - 7.5
GH3 - 12
TDS18 - 143
68 - 82℉
20 - 27.8℃


In the home aquarium, the Rainbow Copella 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.

Tank Mates

1 interesting tank mate ideas for the Rainbow Copella Tetra could include:

Coral Red Pencilfish(Nannostomus mortenthaleri)

Sexual Dimorphism

It is relatively straightforward to distinguish the male from the female Rainbow Copella Tetra. The males are usually larger and longer than females and have more extended fins, which are typically more vibrant. In addition, when males are in spawning condition, a thick dark bar may extend posteriorly along the body from behind the opercle.

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: 27/01/2022 10:56:31 - Updated: 27/01/2022 13:34:47