Cochu's blue tetra

Boehlkea fredcochui

Also known as Blue tetra

FreshwaterFish

Care at a glance

Temperature
72–82°F (22–28°C)
pH
6.0–7.5
Adult size
2.2 in (5.5 cm)
Minimum tank
20 gal (75 L)
Temperament
Peaceful
Social behavior
Schooling
Swim level
Middle
Difficulty
Easy
Breeding
Hard
Rarity
Common
Origin
Peru
Family
Characidae

Overview

Keep a group of at least six, more if you have room, since this is a schooling fish that turns into a fin-nipper when kept in small numbers. It swims in the middle of the tank and is otherwise peaceful with similar-sized fish. A 75 liter tank suits a proper school. Feed quality flake and micro-pellets along with frozen brine shrimp and daphnia. Keep pH from 6 to 7.5 and the water warm and clean.

In the wild

Boehlkea fredcochui comes from the Amazon region of Peru, living in warm, slow stretches of river and side channels. The water is soft and runs from acidic to neutral. A planted tank with some open swimming space and gentle flow matches what it knows. Keep it warm, anywhere from the low 20s to the high 20s C.

Good to know

This is a small characin in the family Characidae, reaching around 5 to 6 cm. It's an egg scatterer with no parental care, and breeding it at home is difficult. The steel-blue body color is its defining trait and is strongest on healthy, settled fish.

Did you know

The species name honors Fred Cochu, an aquarium fish importer from the mid 1900s. He was one of the figures who helped build the early ornamental fish trade out of South America.

Appears in

Freshwater fish · Tetras · Beginner fish · Schooling fish · Community fish

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