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Maximum size : 6 cm

Infernal Tetra - Hemigrammus/Hyphessobrycon "Infernalis" : Complete Fish Profile & Care Guide

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Infernal Tetras are relatively peaceful but can also be slightly territorial. Due to their very active and sometimes territorial behaviours, it would be best if you didn't keep small, delicate, slow-moving fish with them. Instead, slightly larger and more boisterous tankmates such as Emperor Tetras, Lemon Tetras, Serape Tetras and larger Barbs would be best. Keeping these Tetras in groups of five or six would be best. Infernal Tetras look best in a well-planted aquarium. These fish will appreciate areas of dense vegetation as well as some open areas for swimming. You can also add driftwood or bogwood to the aquarium, benefiting the fish. You will also need to have a tight-fitting lid on your aquarium as these Tetras may jump out. The body colour of the male Infernal Tetra is a fantastic dark red colour; however, they are only sometimes like this; usually, only the most dominant individuals have the opportunity to show such a body colour. The males also have a thick dark lateral line on the back half of their bodies. Females, on the other hand, have a beige to light yellow body colour and a slight red hue on their abdomens. The fins of these fish are transparent to lightly hinted.

Infernal Tetra Photos

Sexual Dimorphism

It is simple to differentiate between the male and female Infernal Tetra. Males have much bolder colouring, especially when they flare up and become almost entirely red, while females are much duller.

Quick Facts

Scientific NameHemigrammus/Hyphessobrycon "Infernalis"
Other Names
Max Size6 cm
Aquarium LevelMiddle - Top
Best kept asGroups 5+
Lifespan3 - 5 years

Water Parameters

Water TypeFreshwater
PH5.5 - 7.5
GH5 - 15
TDS18 - 179
72 - 82
22.2 - 27.8

Natural habitat

Unfortunately, there is very little information on Inferno Tetras; however, I know you can find them in the waters on the eastern slope of the Serra do Cachimbo in the southern part of the state of ParĂ¡ in Brazil, South America.

How to breed the Infernal Tetra

There are no breeding reports or information on how to breed Infernal Tetras.

Diet & feeding

In the home aquarium, Infernal Tetras 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. Additional foodstuffs such as live, frozen, and freeze-dried meals such as mini bloodworm, daphnia, and tubifex once or twice a week will provide other benefits to your fish's health and well-being but is not a must for this fish. This fish is an omnivore in the wild, consuming some vegetable matter. Although most modern fish foods consider this 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.

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