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Maximum size : 3 cm

Red Line Tetra - Hyphessobrycon amapaensis : Complete Fish Profile & Care Guide

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The Red Line Tetra (Hyphessobrycon amapaensis) is a striking and dynamic fish that will add a touch of beauty to any aquarium. These Tetras are active and peaceful, and when kept in a group, they create a stunning display of movement and colour that will capture the attention of any observer. Their sleek and slender body has a silvery iridescence with a striking thick red line that runs from the gill plate to the caudal peduncle. The thin white band underneath the red line is followed by a black band, creating a stunning contrast against their silver body. Their fins are generally colourless, with a subtle hint of yellow that completes their stunning appearance. When it comes to tankmates, Red Line Tetras are compatible with a wide range of small and peaceful species, making them a versatile addition to any community tank. However, it's important to keep in mind that they can be easily frightened, so it's best to avoid housing them with much larger, boisterous species. Overall, the Red Line Tetra is an excellent choice for any aquarist looking to add a touch of beauty and elegance to their aquarium.

Red Line Tetra Photos

Sexual Dimorphism

Distinguishing between male and female Red Line Tetras is a challenging task, as there are few observable differences between the sexes. Nevertheless, one noticeable distinction is the larger size and deeper body of sexually mature females when compared to males. By carefully observing these subtle differences, aquarium enthusiasts can accurately identify the sex of their Red Line Tetras and tailor their care accordingly.

Quick Facts

Scientific NameHyphessobrycon amapaensis
Year Described1998
Other NamesAmapa Tetra, Scarlet Tetra, Neon Black Red Stripe Tetra
Max Size3 cm
Aquarium LevelMiddle - Top
DifficultyBeginner - Intermediate
Best kept asGroups 6+
Lifespan3 - 5 years

Water Parameters

Water TypeFreshwater
PH5.0 - 7.0
GH5 - 15
KH2 - 8
TDS18 -143
74 - 82
23.3 - 27.8

Natural habitat

The Red Line Tetra is a fascinating fish that inhabits the Rio Maraca and Rio Preto drainages in Amapa state, Northeastern Brazil. This species can be found in small streams and creeks that flow through the vast savanna grasslands of the region, where they thrive in light brown, crystal-clear waters. The substrate of their natural habitat is composed of gravel and sand, with little to no submerged or riparian vegetation. The unique environment that the Red Line Tetra calls home has contributed to its distinctive appearance and behavior.

How to breed the Red Line Tetra

The Red Line Tetra is a prolific species that will readily spawn in ideal conditions, and it is not uncommon for small numbers of fry to appear in a well-established aquarium without intervention. However, for those seeking to maximize yield, a more controlled approach is necessary. Conditioning the adult group together is a necessary first step, but it is also essential to set up a smaller aquarium filled with mature water. This environment should be dimly lit and feature a bottom covered with mesh or plastic grass matting, or alternatively, a layer of fine-leaved plants or glass marbles. Spawning mops can also yield excellent results. Water conditions should be slightly acidic to neutral, with a temperature towards the higher end of the acceptable range. An air stone or air-powered sponge filter can provide the necessary water movement and oxygenation. Once the adult fish are well-conditioned, a single pair or group containing several females and one or two males can be introduced to each tank and left in place until eggs are discovered, typically the following morning. Feeding the resulting fry initially with infusoria or Paramecium or an exclusive dry food of sufficiently small size is crucial. As the fry grow, they can be introduced to foods such as microworm and artemia nauplii to ensure healthy development. With proper care and attention, hobbyists can enjoy a flourishing population of Red Line Tetras in their aquarium.

Diet & feeding

Red Line Tetras should be provided with a diverse diet consisting of high-quality foods such as flakes and micropellets. In addition, it is recommended to supplement their diet with small frozen foods such as bloodworms, white mosquito larvae, vitamin-enriched brine shrimp, Moina, and daphnia. A well-balanced and varied diet will help ensure the optimal health and vibrant colouration of these Tetras.

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