Aquarium Fish

Disk Tetra

The Disk Tetra (Myleus schomburgkii) can attain a very large size as adults, reaching up to 16 inches (42 cm)! You need a very large tank if you plan on keeping them.

These Disk Tetras are known to have a strong bite (ref: fishbase - "Has powerful dentition that can cause serious bites.") so use caution when working around larger adults.

Most hobbyists should just take a pass on this fish if you see them in the store given their potential adult size.

Disk Tetra


Tetra Care

Scientific Name : Myleus schomburgkii

Common Names : Disk Pacu, Black Band Myleus, Pampano

Care Level : Easy

Size : up to 16 inches (42 cm)

Water Parameters : pH 5 - 7 | Temperature : 73°F - 80°F (23°C - 27°C)

Lifespan : 8 to 10 years, likely longer

Origin / Habitat : South America, Amazon River basin, Nanay River, upper Orinoco River basin

Temperament / Behavior : The Disk Tetra gets big and needs to be kept with similar sized species in a large aquarium.

Breeding : Open water / substratum egg scatters. (ref: fishbase)

Aquarium Size : 200 gallons or much larger recommended given their potential adult size and because they are a schooling fish

Tank Mates : Keep them with similar sized fish species with similar water requirements.

Diet / Foods : In the wild they eat smaller fish, crustaceans, snails, fruits, etc. Get them on a high quality pellet food and supplement with live or thawed freshwater fish preparations.

Tank Region : Middle to lower levels.

Gender : Not sure how to tell males from females.

Photo Credit: Ltshears (wikimedia)

Site References :

More Tetra Fish Profiles

Red Colombian Tetra
Hyphessobrycon colombianus
Red Colombian Tetra
Another medium sized tetra that can get aggressive with other species
Red Eye Tetra
Moenkhausia sanctaefilomenae
Red Eye Tetra
Another tetra that has been known to nip a fin or two or three. Use caution when selecting tank mates.
Rummy Nose Tetra
Hemigrammus bleheri
Rummy Nose Tetra
These tetras have red heads that can change colors depending on environmental stressors.

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