Electric catfish

Malapterurus electricus

Also known as African electric catfish

FreshwaterFish

Care at a glance

Temperature
73–82°F
23–28°C
pH
6.5–7.5
Adult size
39.4 in
100 cm
Minimum tank
198 gal
750 L
Temperament
Aggressive
Social behavior
Solitary
Own kind
One per tank
Tankmates
Species tank only
Swim level
Bottom
Difficulty
Difficult
Breeding
No record
Rarity
Rare
Family
Malapteruridae
Origin
Widespread across tropical Africa, including the Nile and Congo basins.

Overview

This is a large, potentially dangerous predator that can deliver a real electric shock, so it must be kept alone in a species tank and handled with great care during maintenance. It reaches roughly a meter and needs a big tank of at least 750 liters with strong filtration and solid cover. It is aggressive and will eat any tankmate it can catch, so no companions of any kind. Feed meaty foods like fish, prawns, and earthworms, and never put your hands in the tank with the fish loose.

In the wild

The electric catfish lives in slow and still waters across tropical Africa, hiding by day among rocks, roots, and hollows and hunting at night. It prefers dim, calm surroundings with plenty of solid cover and gentle flow, at 23 to 28 degrees C. A species-only tank with a secure setup and no fragile equipment inside is the safe way to keep it.

Good to know

Malapterurus electricus can generate electric discharges of several hundred volts, with reports up to 350 to 450 volts, using specialized muscle-derived electric organs that wrap much of its body. It reaches around a meter in the wild, though captive fish often stay nearer 40 to 60 cm. It uses the shock both to stun prey and to defend itself.

Did you know

It is one of the few fish that can shock a person, and it was known to the ancient Egyptians, who depicted it in tomb art thousands of years ago.

Common questions

What size tank does an Electric catfish need?

An Electric catfish needs at least 198 gal (750 L). It spends most of its time in the bottom.

What temperature and pH does an Electric catfish need?

An Electric catfish is comfortable at 73–82°F (23–28°C) with a pH of 6.5–7.5.

How big does an Electric catfish get?

An adult Electric catfish reaches about 39.4 in (100 cm).

Related species