Reed Tetra Care Guide

Hyphessobrycon elachys · Freshwater Fish

Reed Tetra
AI-generated illustration of Reed Tetra
Temperature
72-82°F
pH
5.5-7.5
Adult size
~1″ (2.5 cm)
Suggested tank
15+ gal
Group size
6+ together
Origin
South America
Family
Characidae

What Reed Tetra look like

The Reed Tetra (Hyphessobrycon elachys) is a diminutive, laterally compressed fish, reaching a maximum adult size of approximately 1 inch (2.5 cm). Its body is characterized by a slender, delicate form with a translucent silver hue, which allows it to blend seamlessly into its reedy habitat. Sexual dimorphism is subtle; males tend to exhibit slightly more vibrant coloration and a more streamlined body compared to the females, especially during breeding periods. Notable morphological features include a well-defined lateral line that aids in hydrodynamic sensing and a small adipose fin situated posterior to the dorsal fin. The Reed Tetra possesses small, conical teeth adapted for its omnivorous diet, and its fins are typically transparent with minimal pigmentation, enhancing its cryptic appearance among aquatic vegetation. Defensive adaptations include its small size and schooling behavior, which together reduce individual predation risk.

Behavior & temperament

Reed Tetras are social fish that thrive in small to moderate-sized schools, exhibiting a hierarchical social structure where dominant individuals often display more vibrant coloration and assertiveness. They inhabit the mid to upper water column, frequently darting among the dense vegetation of their natural reed habitats. Breeding behavior is characterized by egg scattering, where females release eggs among plants, allowing for minimal parental care post-spawning. Their temperament is generally peaceful, making them suitable for community tanks, though they may exhibit slight territoriality during breeding periods.

Diet & feeding

In the wild, Reed Tetras are omnivorous, feeding on small invertebrates, plant matter, and detritus. In captivity, they require a varied diet that includes high-quality flake food, micro-pellets, and occasional live or frozen foods such as daphnia and brine shrimp to ensure optimal health and coloration.

Behind the name

Hyphessobrycon (from Greek 'hyphē' meaning 'web' and 'sōbrycon' meaning 'small fish'); elachys (from Greek 'elachys' meaning 'small' or 'little').

Plan your tank

Check the numbers before you buy: tank volume, a stocking plan, cycle progress, water changes, and your ongoing care routine.

Keeping Reed Tetra?

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