Redback paradisefish

Macropodus erythropterus

Also known as Red-backed paradisefish, Redback paradise fish, Vietnam paradise fish

FreshwaterFish

Care at a glance

Temperature
68–86°F
20–30°C
pH
6.0–8.0
Adult size
3.1 in
8 cm
Minimum tank
20 gal
75 L
Temperament
Mostly peaceful
Social behavior
Social
Tankmates
With caution
Swim level
Middle
Difficulty
Easy
Breeding
Medium
Rarity
Rare
Family
Osphronemidae
Origin
Coastal river systems of central Vietnam, in slow, shallow, vegetated waters.

Overview

Keep a pair or a single fish in a 75 litre planted tank at 20 to 30 C with a pH of 6.0 to 8.0, since it is adaptable. Feed small live and frozen foods like bloodworm, daphnia, and brine shrimp, plus some dried food. Males can be territorial toward each other and may nip long-finned or timid tankmates, so choose robust, quick companions. Dense planting and floating cover reduce squabbles.

In the wild

Native to lowland streams, ditches, and rice-field margins that are warm and thick with plants. It holds in the mid and upper water among vegetation and breathes air at the surface. The water tends to be soft and neutral to slightly acidic. It was only formally described in 2002 after being confused with other paradise fish.

Good to know

Macropodus erythropterus was described by Freyhof and Herder in 2002 and is a member of the family Osphronemidae. The name refers to the red coloration in its fins, especially the back and tail. It is one of several paradise fish separated out from the widespread Macropodus opercularis complex.

Did you know

Like other paradise fish it is hardy and tolerates cool room temperatures, which makes an unheated tank possible in a warm home.

Common questions

What size tank does a Redback paradisefish need?

A Redback paradisefish needs at least 20 gal (75 L). It spends most of its time in the middle.

What temperature and pH does a Redback paradisefish need?

A Redback paradisefish is comfortable at 68–86°F (20–30°C) with a pH of 6.0–8.0.

How big does a Redback paradisefish get?

An adult Redback paradisefish reaches about 3.1 in (8 cm).

Related species