Banded Knifefish (Gymnotus carapo)

Fish in the family Gymnotidae. Hard care. Freshwater.

Banded Knifefish

Quick facts

Scientific nameGymnotus carapo
FamilyGymnotidae
Also known asTiger Knifefish, Carapo Knifefish
Care levelHard
Reef safetyFreshwater
TemperamentAggressive
DietCarnivore
Adult size24 in
Minimum tank size90 gallons
Water parametersTemp 73-82°F, pH 6.0-7.5, GH 4-16 dGH

Appearance

Cylindrical brown body with oblique pale bands, a blunt head, and a long anal fin reaching the tail; no dorsal fin.

Difficulty and care for the Banded Knifefish

Hard

Origin and habitat

Central and South America

Keeper notes

An aggressive, predatory knifefish that eats fish and shrimp and is highly intolerant of other knifefish; keep singly. House only with robust tankmates too large to swallow. Strong jumper.

Log Banded Knifefish in your reef tank

Reef Trak gives you the full record on every species in your tank: acquisition date, source, photos, parameters at time of stocking, and links to maintenance and feeding events. Track Banded Knifefish alongside everything else in your reef.