Knife Fish care guides

Care Guide

Knife Fish Care Guide

A care guide for the most popular knife fish species in the freshwater hobby — Black Ghost Knife, Clown Knife, and African Knife Fish. Covers their unique electrolocation abilities, nocturnal behaviour, feeding strategies, and compatibility.

Species Guide

Clown Knife Fish (Chitala ornata)

Chitala ornata

The Clown Knife Fish (Chitala ornata) is a spectacular Southeast Asian predator recognised by its laterally compressed, blade-shaped body and the distinctive ocellated spots along its lower flank. Capable of exceeding 100 cm in the wild and commonly reaching 60 cm in home aquaria, it demands a spacious tank, expert-level feeding protocols, and careful tank-mate selection. This guide covers every aspect of Clown Knife Fish care — from habitat replication and water chemistry to diet, breeding, and disease management — informed by The Fish Collection's years of direct experience with this iconic species.

Species Guide

Black Ghost Knife Fish

Apteronotus albifrons

The Black Ghost Knife Fish (Apteronotus albifrons) is one of the most fascinating freshwater fish available to aquarists. A member of the knifefish order Gymnotiformes — the same order that includes the Electric Eel — this jet-black, blade-shaped fish navigates its environment using weak electrical fields generated by a specialised organ in its tail. Native to the rivers and streams of the Amazon Basin, the Black Ghost Knife is nocturnal, shy, and remarkably intelligent, capable of learning to feed from the hand and recognising its keeper. This guide covers the species' unique biology, care requirements, and the specific considerations needed to keep this extraordinary fish thriving.