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Fish Freshwater Care: easy Semi-aggressive

Black Paradise Fish

Macropodus spechti
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Other names: Macropodus concolor, Spechti
Group: Labyrinth fish · Family: Osphronemidae · Origin: East Asia — its natural range is not known for certain; it is thought to come from the area around northern Vietnam and southern China

The dark-colored relative of the paradise fish, with a dark brown to black body and long fins. Calmer than its relative; still, its males are territorial and it is predatory toward shrimp.

Will it suit my tank?

Last updated October 16, 2026

Temperature
20–26°C
pH
6–7.5
Hardness
4–15 dGH
Adult size
8 cm
Minimum tank size
60 liters
Social structure
Pair
Male–female ratio
1 erkek : 1–2 dişi
Swimming zone
Top
Diet
Carnivore
Breeding
Bubble nest

Water parameters

Temperature20–26°C
pH6–7.5
General hardness (GH)4–15 dGH
Recommended range
May escape, needs a lid Eats shrimp Suitable for planted tanks

Overview

October 16, 2026 · Suggest an edit

The black paradise fish is the dark-colored relative of the well-known paradise fish. The males' body varies from dark brown to black; they have long dorsal and anal fins and a forked tail with extended tips. In the hobby it was long known as Macropodus concolor, and this name is still common. Its natural range is not known for certain. It is calmer than the paradise fish and likes slightly warmer water.

Tank Setup

October 16, 2026 · Suggest an edit
  • At least 60 liters for a pair.
  • 22–25°C, pH 6–7.5; soft to moderately hard water.
  • Dense plants, floating plants and hiding places for the females.
  • Gentle flow and a tight lid; warm air above the surface.

Diet

October 16, 2026 · Suggest an edit

Mainly carnivorous. It accepts flakes and granules; supplement with frozen and live bloodworms, brine shrimp, daphnia and mosquito larvae. Feed in moderation 1–2 times a day.

Behavior and Compatibility

October 16, 2026 · Suggest an edit

More docile than the paradise fish, but males are territorial toward each other. It hunts shrimp and fish fry; it may harass slow, long-finned fish.

Good companions: robust, calm fish of similar size: zebra danio, rosy barb, large rasboras, corydoras.

Avoid: dwarf shrimp, slow long-finned species (bettas, guppies), very small fish, a second male of its own species (in a small aquarium).

A short profile for this species

The Black Paradise Fish page has the basics, but the sections below have not been written yet. If you keep this species, write a section from your own experience; it will be published under your name after editor approval.

Tank mates

This list is calculated automatically from the species profile and grows as new species are added to the catalog. Try it in the planner for a definite answer.

Usually compatible

Should not be kept together

Hobbyist notes

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Things you won't find in books, learned by trial and error. The most helpful ones are on top.

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Change history and contributors
  1. Page created · October 16, 2026