Redspotted snakehead

1) Where they come from

Channa andrao (the redspotted snakehead) comes from Northeast India—cooler, plant-choked streams and pools where the water can be soft and a bit tea-stained. They’re not one of those “boiling hot” snakeheads. Think more like a shaded creek with leaf litter, roots, and calm pockets.

2) Setting up their tank

If you set these up like a little forest stream, they settle in fast and show way more personality. Mine spent the first week hiding, then suddenly started “patrolling” once the tank felt secure.

• Tank size: 20 long works for a single adult, but 30–40 gallons gives you way more options (especially for a pair or group). Footprint matters more than height.
• Lid: non-negotiable. They jump and they can push surprisingly hard. Block any gaps around filters and cords.
• Decor: lots of cover—caves, driftwood tangles, rock piles, and dense plants (real or fake). Floating plants help them feel bold.
• Substrate: sand or fine gravel. Leaf litter (Indian almond/oak/beech) makes them act more natural and tones down skittishness.
• Filtration: gentle flow. They don’t love being blasted around. A sponge filter or a canister turned down with a spray bar works great.
• Temperature: room-temp to lightly heated is fine for most homes (roughly low–mid 70s°F / low 20s°C). They don’t need it hot.

3) What to feed them

These guys are little predators with big appetites, but you can keep them in great shape without turning your tank into a feeder-fish mess. The goal is varied, meaty foods they can swallow easily.

• Staples I’ve had the best luck with: frozen/thawed shrimp, tilapia/white fish chunks, krill, mussel, and earthworms/nightcrawlers (rinsed).
• Great “conditioning” foods: live earthworms, blackworms, and occasional live insects (roach nymphs/crickets if you’re into that).
• Pellets: some will take carnivore sticks or sinking predator pellets, but many need patience. Start by mixing pellets in with their favorite frozen food.
• How often: adults don’t need daily feeding. 3–4 times a week keeps them lean and active. Juveniles can be fed smaller portions more often.

4) Behavior and tankmates

Channa andrao are smart, curious, and a bit dramatic. Once they recognize you as “the food person,” they’ll come out and stare you down. But they’re still snakeheads—territorial, mouthy, and opportunistic.

They’re usually kept species-only for a reason. Anything small enough to fit in their mouth is food. Anything that competes for the same hideouts can get bullied, especially in tighter tanks.

• Best setup: species-only, with multiple hides and sight breaks.
• If you insist on tankmates: choose fish too big to swallow, not nippy, and comfortable in similar temps. Even then, have a backup plan.
• Group vs pair: juveniles can sometimes be raised together, but as they mature you may see squabbles. Extra cover helps, but be ready to separate.

5) Breeding tips

Breeding is doable in the home aquarium and honestly pretty cool to watch. The trick is giving them privacy and letting them pair up naturally instead of forcing two adults together.

• Start with a small group of juveniles and let a pair form. Once a pair bonds, the odd fish usually gets chased—pull it out.
• Condition with higher-quality foods (worms, shrimp, fish chunks) for a few weeks.
• Give them floating cover (floating plants, a clump of hornwort, or even a floating spawning mop). They often like a calm surface zone.
• Keep the tank quiet and stable. Lots of fiddling around the tank can make them abandon attempts.

6) Common problems to watch for

Most issues I’ve seen with andrao come from three things: stress from a bare tank, bad food choices, or sloppy water. Fix the root cause and they bounce back pretty well.

• Jumping/escaping: almost always a lid gap. Check corners, HOB filter cutouts, and cable holes.
• Refusing food: common after shipping or a tank move. Dim the lights, add cover, and offer worms or shrimp. Don’t panic-feed a dozen options at once.
• Bloat/constipation: usually from overfeeding or rich foods. Cut feeding for a few days and switch to lighter items (worms, shrimp) afterward.
• Scrapes on the nose: from glass-surfing or spooking into the lid. Add floating plants and side cover; keep the room lighting calmer.
• Ich/velvet: they can get it, especially if they’re chilled or stressed. Treat the tank, not just the fish, and bump temps carefully (don’t cook them).
• Fin damage from fighting: separate and keep water clean. These heal fast in clean water with low stress.