Disk Tetra

Hyphessobrycon sp.

Disk Tetra (Hyphessobrycon sp.) — Easy care, Peaceful, under Tetra & Characin. Minimum tank in the app: 15.9 US gal min; aim for 75–82°F and pH 6–7.5. Disk Tetras are ideal for aquarists seeking a vibrant, active shoaling species that thrives in spacious environments.

Disk Tetra (Hyphessobrycon sp.) in a planted freshwater aquarium
Care levelEasy
TemperamentPeaceful
Min tank size15.9 US gal min
pH range6–7.5
Temperature75–82°F
Max size1.6 in (4.0 cm)
Captive lifespan3–6 years
SchoolingYes · 6+ recommended

Captive lifespan reflects typical experience in a home aquarium, not maximum recorded age; genetics, sourcing, and care vary.

Natural distribution

South America

  • South America

Regional colours match the stocking calculator’s origin map.

Disk Tetra Tank Setup

Create a spacious tank with plenty of open swimming areas complemented by some plants and decorations that provide cover and visual barriers. A sandy substrate and moderate to strong water flow can mimic their natural habitat, while soft lighting helps reduce stress. Given their size and activity level, a volume of at least 645 liters is essential to accommodate their needs effectively.

What Do Disk Tetras Eat?

As omnivores, Disk Tetras thrive on a varied diet of micro foods, but they can be competitive feeders. Slow feeders or species that require larger food particles may struggle to compete, which can lead to health issues.

Disk Tetra Tank Mates

Disk Tetras pair well with similarly sized, peaceful species, such as other tetras or small community fish. Larger, aggressive fish can pose a threat, particularly in confined spaces. When kept in groups of at least six, they display more natural behaviours, and the risk of aggression within the group is minimized as they establish a social structure.

Are Disk Tetras Good for Beginners?

In App-aquatic we file this under easy care. That still means a cycled tank, realistic stocking, and parameters that do not swing every weekend. Aquarists often underestimate the space required for Disk Tetras, leading to overcrowding, which can result in stress and poor health. keeping them in smaller groups can stifle their social behaviour, causing them to retreat and become inactive.

Building a community? Run the full list through the stocking calculator before you add anything else.

Log tests and reminders in App-aquatic—free, same data you see here.