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
2.2 in (5.5 cm)20 gal (75 L)70–77°F (21–25°C)Vaillant's chocolate gourami
Sphaerichthys vaillanti
2.2 in (5.5 cm) · 20 gal (75 L)
2 in (5 cm)17 gal (65 L)79–88°F (26–31°C)Chocolate gourami
Sphaerichthys osphromenoides
2 in (5 cm) · 17 gal (65 L)
1.8 in (4.5 cm)16 gal (60 L)79–86°F (26–30°C)Crossband chocolate gourami
Sphaerichthys selatanensis
1.8 in (4.5 cm) · 16 gal (60 L)
2.8 in (7 cm)25 gal (95 L)72–82°F (22–28°C)Croaking gourami
Trichopsis vittata
2.8 in (7 cm) · 25 gal (95 L)
2.8 in (7 cm)16 gal (60 L)72–82°F (22–28°C)Pugnax betta
Betta pugnax
2.8 in (7 cm) · 16 gal (60 L)
2.8 in (7 cm)26 gal (100 L)72–81°F (22–27°C)Raja betta
Betta raja
2.8 in (7 cm) · 26 gal (100 L)
