Family: Channidae
An aggressive predatory snakehead from southern China and Southeast Asia. Keep alone in a large, covered tank.
A Channidae species native to S & SE Asia: Channa maculata lives bottom; rests and forages low over clear streams, rivers and still waters. Aggressive predator — keep alone. Adults reach 18.6–26.6 cm. It is one of the aquarium-kept Channa species we profile, alongside Channa argus, Channa asiatica, Channa aurantimaculata.
Yes — hardier than most Channa. It's among the most adaptable snakeheads: cold-tolerant (survives below 13 °C), low-oxygen tolerant (air-breathing), and indifferent to water chemistry. At 20–27 cm adult size it's a mid-small member of the family, content in 266 L+ solo — a solid first snakehead.
Because its type locality is Taiwan — its Japanese common name is 'Taiwan-dojō' (Taiwan mudfish). Its natural range actually spans southern China, Taiwan, and parts of mainland SE Asia. Tank specimens are close kin of the 'sheng yu' sold live in southern Chinese markets, at a third the size of C. argus.
Short oxygen crashes won't kill it, but keep filtration anyway. Like all snakeheads it breathes air via a suprabranchial organ and weathers low oxygen. Standard practice is still gentle flow and normal filtration — foul water produces the usual fasting, fin rot, and fungal infections. Low-maintenance is not no-maintenance.
Not recommended. Blotched snakeheads are fierce and territorial: anything swallowable gets eaten, anything else gets bitten. 'Successful community' cases are usually temporary truces in large, heavily structured tanks that break down in adulthood. A single specimen shows the best condition and its characteristic ambush posture.
Carnivore: small fish, loaches, shrimp, frogs. The pellet-training path: fast 3–5 days, condition with tweezer-fed live food, then wrap pellets in live bait, then transition to pure pellets and frozen. Juveniles are the golden training window — an adult that missed it may refuse prepared food for life. Start training young.
Serious — lid security is priority one. Channa leap to hunt and to migrate; even a small maculata jumps well, and its amphibious endurance means an escaped fish travels far. Weigh down the cover and foam every cord opening. This is not a line item to skip.
Standard Channa skill: mood, background, and health all shift the palette. Blotched snakeheads swing from near-black brown to light tan, with the blotch pattern sharpening or fading. Sudden darkening plus refusal to eat and clamped fins is a health alarm; mere color shifting is mood and environment — ignore it.
Far lower than you'd guess. Wild fish bury in mud over winter; brief spells at 8–10 °C are survivable, and unheated southern-China rooms are usually safe year-round. Hold 18–26 °C for normal keeping; reduced winter appetite is physiology, not a problem to fix with a heater. Rapid temperature swings are more dangerous than cold itself.
Yes — among the easier Channa. A compatible pair builds a floating bubble nest, guards eggs and fry together, with free-swimming fry in about a week. Keys: one proven pair (avoid multi-male fights), 24–26 °C, floating plants for nest material, and no feeding during spawning to prevent fouling the nest. Start fry on baby brine shrimp.
In some regions (parts of the US) snakeheads are regulated as injurious wildlife — check local law before keeping. In China it's native, but native doesn't mean releasable: captive fish carry pathogens, and releasing into non-native watersheds is illegal regardless. Never release; rehome or return to a fish store instead.