Sharpnose chocolate gourami

Sphaerichthys acrostoma

Also known as Giant chocolate gourami, Pointed-mouth chocolate gourami, Sharp-nosed chocolate gourami, Sharp nose chocolate gourami

FreshwaterFish

Care at a glance

Temperature
72–79°F
22–26°C
pH
4.0–6.5
Adult size
2.8 in
7 cm
Minimum tank
24 gal
90 L
Temperament
Peaceful
Social behavior
Social
Tankmates
With caution
Swim level
Middle
Difficulty
Difficult
Breeding
Hard
Rarity
Very rare
Family
Osphronemidae
Origin
Mentaya River drainage in Central Kalimantan, Borneo, in acidic blackwater habitats.

Overview

Keep a group in a 90 litre blackwater tank at 22 to 26 C with very soft, acidic water around pH 4.0 to 6.5, plenty of leaf litter, and dim light. Feed small live and frozen foods such as baby brine shrimp, daphnia, and bloodworm, as it is a fussy micropredator that often refuses dried food. It is peaceful and retiring, so give it a quiet species tank or very calm tankmates. It prefers slightly cooler water than most blackwater fish, so avoid high temperatures.

In the wild

Found in soft, acidic, tannin-stained blackwater of the Mentaya drainage, among cover in shaded forest waters. It is the largest of the chocolate gouramis and has a noticeably pointed, elongated snout. The water is mineral-poor and often cooler than most tropical blackwater. It keeps to leaf litter and submerged wood in dim conditions.

Good to know

Sphaerichthys acrostoma is a member of the family Osphronemidae and the biggest of the chocolate gouramis at around 6 to 7 cm. It is a paternal mouthbrooder, with the male carrying the eggs and fry in his mouth. Its pointed snout and larger size set it apart from the other Sphaerichthys species.

Did you know

The male broods the eggs and fry in his mouth, unlike its relative the crossband chocolate gourami, where the female does the brooding.

Common questions

What size tank does a Sharpnose chocolate gourami need?

A Sharpnose chocolate gourami needs at least 24 gal (90 L). It spends most of its time in the middle.

What temperature and pH does a Sharpnose chocolate gourami need?

A Sharpnose chocolate gourami is comfortable at 72–79°F (22–26°C) with a pH of 4.0–6.5.

How big does a Sharpnose chocolate gourami get?

An adult Sharpnose chocolate gourami reaches about 2.8 in (7 cm).

Related species