Maximum size : 100 cm

Clown Featherback Knifefish - Chitala ornata : Complete Fish Profile & Care Guide

Table of contents

Introduction

The Clown Featherback Knifefish (Chitala ornata) is a captivating species primarily native to the freshwater habitats of Southeast Asia. The Clown Featherback's unique body morphology facilitates graceful undulating movements, making it a favoured spectacle in both home aquaria and public aquarium exhibits. However, aspiring keepers should exercise caution, given its potential to reach substantial sizes and the species' specific care requirements. The name "knifefish" is derived from its blade-like appearance, which, combined with its exquisite markings, ensures that the Clown Featherback remains an enduring favourite among aquarists.

Given their size and territorial nature, Clown Featherback Knifefish are best kept singly in home aquariums. Keeping multiple Clown Knifefish together is usually not recommended unless you have a significantly large and well-structured aquarium that can provide ample space for each individual to establish its own territory. This is essential to minimize aggression and ensure the well-being of each fish. If you do choose to keep more than one, they should be monitored closely for any signs of aggression or stress. While typically placid toward larger fish that aren't viewed as prey, can exhibit territorial tendencies with those of similar shape or their own kind, especially in limited spaces. In their juvenile stage, these fish often congregate near aquatic vegetation and fallen logs for protection. However, as they mature, they develop more solitary habits, marking territories distinctly their own.

Often marketed as a novelty in aquatic pet stores, the Clown Featherback quickly outgrows the capacity of standard home tanks. They favour environments adorned with foliage, caves, or other retreats to provide sanctuary during their rest periods. Being adept jumpers, a secure and tightly fitted lid for their enclosure is imperative. Dimly lit tanks may mitigate their inclination to leap. Initially, these fish might display timidity, seeking shelter frequently, but as they grow, their confidence and dominance become more pronounced.

Distinguished by its elongated, laterally compressed silhouette and elongated anal fin, the Clown Featherback Knifefish boasts a primarily silvery-grey hue. As they mature, these fish typically feature a row of 5 to 10 pronounced black spots encircled in white above the anal fin's base, which diminish in size with age. The aquarium trade occasionally offers albinistic and leucistic variants. While juveniles might not sport these distinctive spots, they often showcase stripe patterns. The fish's elongated anal fins enable it to glide both forward and backwards with elegance and poise.

Clown Featherback Knifefish Photos

Sexual Dimorphism

Clown Featherback Knifefish exhibit modest sexual dimorphism, meaning that the differences between males and females are not easily discernible at first glance. For mature specimens, males might have a slightly more elongated and slender body shape compared to females. Females, especially when gravid, might appear bulkier or fuller in the abdominal area. However, accurately determining the gender of clown knifefish usually requires more invasive methods or observation of breeding behaviour, which is why it can be challenging for hobbyists to differentiate between the sexes in typical aquarium settings.

Quick Facts

Scientific NameChitala ornata
Year Described1831
Other NamesClown Knifefish, Spotted Knifefish
KingdomAnimalia
ClassificationActinopterygii
OrderOsteoglossiformes
FamilyNothobranchiidae
GenusChilodus
OriginsCambodia , Laos , Thailand , Vietnam
Max Size100 cm
TemperamentPeaceful
Aquarium LevelBottom - Middle
DifficultyAdvanced
ShoalingNA
Best kept asLoners
Diet & FeedingOmnivore
ReproductionEgg Depositor
Average LifespanUp to 15 Years

Water Parameters

Water TypeFreshwater
pH 6.0 - 8.0
GH 5 - 15
TDS 36 - 268
Ideal Temperature
75 - 85
24 - 29

Natural Habitat

The Clown Featherback Knifefish originates from the freshwater ecosystems of Southeast Asia, specifically within the Mekong, Chao Phraya, and Meklong River Basins spanning Cambodia, Laos, Thailand, and Vietnam. Remarkably adaptable, this species has been introduced to territories beyond its indigenous range, earning it a reputation as one of the globe's most invasive species. 

Their natural habitats encompass the lower reaches of rivers and tributaries, floodplains, swamps, lakes, and even human-engineered dams. During spawning periods, they venture into flooded forest regions. It is important to note that potential threats to their survival include dam constructions and various other human-induced habitat modifications.

Breeding

The breeding of the Clown Featherback Knifefish in captive settings remains undocumented. However, in their natural habitat, male specimens engage in intricate nesting behaviours, assembling nests from twigs and foliage. Following spawning, which typically occurs in inundated forest regions during the rainy season, the male vigilantly oversees the protection of both the eggs and the emerging fry.

Diet & Feeding

The Clown Featherback Knifefish predominantly exhibit nocturnal predatory behaviours in their natural habitats, preying on smaller fish, crustaceans, and other invertebrates. However, in captive environments, they generally adapt well to non-living food alternatives. Juvenile specimens benefit from a diet comprising bloodworms, finely chopped prawns, and smaller earthworms. In contrast, mature individuals can be offered fish slices, whole prawns, mussels, live river shrimp, and sizeable earthworms. While they may consume dried pellets, it's imperative that these do not constitute the primary component of their dietary intake.

Other Oddballs

2000 characters remaining!