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Fish Freshwater Care: medium Semi-aggressive

Stinging Catfish

Heteropneustes fossilis
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Other names: Asian stinging catfish, Fossil catfish, Singhi, Heteropneustes
Group: Other catfish · Family: Heteropneustidae · Origin: South Asia — India, Pakistan, Sri Lanka, Bangladesh, Nepal and Myanmar

WARNING: Its pectoral spines are venomous; a sting causes severe pain and swelling. It is an air-breathing, nocturnal and predatory Asian catfish reaching 30 cm, suitable only for experienced hobbyists.

Will it suit my tank?

Last updated October 16, 2026

Temperature
21–28°C
pH
6.5–8
Hardness
5–20 dGH
Adult size
30 cm
Minimum tank size
250 liters
Social structure
Solitary
Swimming zone
Bottom
Diet
Carnivore
Breeding
Other

Water parameters

Temperature21–28°C
pH6.5–8
General hardness (GH)5–20 dGH
Recommended range
Eats small fish Eats shrimp Suitable for planted tanks

Overview

October 16, 2026 · Suggest an edit

The stinging catfish is a long, laterally compressed catfish that can take oxygen from the air thanks to air sacs running along its body. It lives in swamps, ponds and rice paddies of South Asia, in oxygen-poor water. Adults reach 30 cm. Warning: the spines in its pectoral fins are connected to venom glands; a sting is very painful and causes swelling and long-lasting pain. Never handle the fish with bare hands; seek medical help if you are stung.

Tank Setup

October 16, 2026 · Suggest an edit
  • At least 250 liters and 120 cm of length for a single adult.
  • A tightly closing lid; leave enough space for it to come to the surface to gulp air.
  • Soft sand, roots and caves; dim light.
  • 22–28°C, pH 6.5–8.0; strong filtration.

Diet

October 16, 2026 · Suggest an edit

Carnivorous. It eats fish fillet, shrimp, worms, frozen bloodworms and sinking carnivore granules. Feed in the evening.

Behavior and Compatibility

October 16, 2026 · Suggest an edit

A nocturnal predator; it hunts fish and shrimp that fit in its mouth. It can also be aggressive toward its own kind. During aquarium maintenance, know where the fish is before putting your hand in the water; use a container instead of a net.

Good companions: fish larger and sturdier than itself: large cichlids, big barbs, large plecos.

Avoid: small and medium-sized fish, shrimp, aquariums where children could put their hands in the water.

A short profile for this species

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