
Sumatra barb (Tiger barb)
Puntigrus tetrazona
Also known as: Tiger barb, Sumatra barb, Sumatran tiger barb
Tiger barbs are little chaos nuggets in the best way-super active, always zipping around, and they look awesome with those four bold black bars and orange fins. The big trick is keeping them in a proper-sized group so they roughhouse with each other instead of shredding a slow, long-finned tank mate's fins.

Sumatra barbs exhibit a striking pattern of black vertical stripes on a golden-yellow body and possess a distinctive dorsal fin with a pointed shape.
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Quick Facts
Size
7 cm (2.8 inches)
Temperament
Semi-aggressive
Difficulty
Beginner
Min Tank Size
20 gallons
Lifespan
5-7 years
Origin
Southeast Asia (Indonesia: Sumatra and Borneo)
Diet
Omnivore - quality flakes/pellets plus frozen/live foods; will also take some plant matter
Water Parameters
20-26°C
6-8
5-19 dGH
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This species needs 20-26°C in a 20 gallon tank. Use our heater calculator to find the right wattage.
Calculate heater sizeCare Notes
- Keep tiger barbs in a group of at least 6-8 (10+ is even better) or they'll turn into fin-nipping little jerks and bully everything.
- Give them a 20-30+ gallon tank for a proper school, with open swimming space and some plants/wood around the edges for breaks in the line of sight.
- They're pretty flexible on water, but they do best around 74-79°F (23-26°C), pH roughly 6.0-7.5 (often slightly acidic to neutral), and steady clean water-spikes in ammonia/nitrite will show up fast as stress and nipping.
- Feed small amounts 1-2x a day: a good flake/pellet as the base, plus frozen/live stuff like bloodworms or brine shrimp a couple times a week; toss in a little veggie (spirulina, blanched zucchini) so they don't get bloaty.
- Tankmates: stick with other quick, confident fish (danios, larger tetras, rasboras, loaches) and avoid slow long-finned fish like bettas, guppies, angelfish, and fancy gouramis unless you want shredded fins.
- If you want plants, pick tougher ones (Java fern, Anubias, crypts) and/or keep them well-fed-hungry barbs will sample soft new growth sometimes.
- Breeding is doable: set up a separate tank with marbles/mesh or dense moss because they'll happily eat their own eggs; a cool-water change and heavy feeding often kicks them into spawning mode.
Compatibility
Good Tankmates
- Other Tiger barbs (they seriously do best in a proper group-8+ if you can-so they chase each other instead of everybody else)
- Zippy schooling fish that can handle the chaos, like larger tetras (Congo tetras, black skirt tetras) - fast enough to not get bullied
- Danios (zebra danios, giant danios) - same high-energy vibe, and they don't sit still long enough to get fin-nipped
- Rasboras that aren't tiny/fragile (scissortail rasboras are a classic) - active midwater swimmers that hold their own
- Hardy bottom crew like corydoras - they mostly keep to themselves on the floor and don't trigger the barbs much
- Bristlenose pleco or other sturdy plecos - they're armored, ignore the barbs, and stick to their own business
Avoid
- Slow fish with fancy fins (bettas, guppies, fancy mollies) - tiger barbs treat flowing fins like a chew toy
- Angelfish - those long trailing fins are basically a 'nip me' sign, and stress gets ugly fast
- Long-finned gouramis (especially slow/flowy ones) - they get harassed and end up hiding or getting shredded
- Super chill, timid community fish (small tetras like neons/embers) - they can get chased nonstop and stop eating
Where they come from
Tiger barbs (Sumatra barbs) come from Southeast Asia—think Borneo and Sumatra—where they’re found in warm, plant-y, tannin-stained streams and slow rivers. That “tea-colored” water vibe is pretty common in their natural spots, with lots of roots, leaf litter, and cover.
You don’t have to recreate a jungle creek perfectly, but knowing they’re built for busy, cluttered water helps explain why they love cover and why they act like little orange-and-black missiles all day.
Setting up their tank
Give them room to school and zoom. A 20-gallon long can work for a small group, but you’ll have a much easier time (and calmer fish) in a 30–40 gallon. They’re active and they use the whole tank.
- Tank size: 20 long minimum for a group; 30–40 gal is the “this is easy now” zone
- Group size: 8–12 is where the nipping usually drops off a cliff
- Filter: any decent filter is fine, but they appreciate some flow and high oxygen
- Heater: yes—steady warm water keeps them less cranky
- Décor: plants (real or fake), driftwood, and rock piles to break up sightlines
- Open swimming lane: leave the front/middle open so they can cruise
My best Tiger Barb tanks always had “visual speed bumps”—clumps of plants or wood that stop them from constantly chasing the same fish across the whole tank.
Water parameters aren’t something to stress over with these guys. Aim for stable: mid-70s to low-80s °F (24–28°C), neutral-ish pH, and clean water. They handle a range, but they don’t handle dirty water and big swings.
They’re curious fin-biters, and they’re fast. A lid is a good idea, and long-finned tankmates are basically an invitation.
What to feed them
Tiger barbs eat like they’re getting paid by the bite. They’re not picky, but you’ll get better color and less “hangry” behavior if you feed a mix instead of only flakes.
- Staple: quality flake or small pellets
- Frozen: bloodworms, brine shrimp, daphnia (great for keeping them in condition)
- Live (optional): baby brine shrimp, grindal worms, mosquito larvae where legal/safe
- Veggie bits: spirulina flakes, blanched zucchini/peas, or algae-based foods now and then
Small meals 1–2x a day beats one big dump. If they’re constantly hunting each other, try adding a tiny afternoon snack—seriously, it can take the edge off.
Behavior and tankmates
They’re classic “busy” fish: lots of chasing, pecking order stuff, and nonstop movement. In a proper group, most of that energy stays inside the school. In a too-small group, they start shopping for fins to nip.
- Good tankmates: other quick, confident fish (danios, rasboras, many tetras), hardy barbs, rainbowfish
- Bottom buddies: corydoras, loaches, bristlenose pleco (generally ignored)
- Avoid: bettas, angelfish, guppies, fancy gouramis, long-finned anything, slow “zen” fish
If you really want Tiger barbs but also love slower fish, consider a Tiger Barb-only tank. They’re honestly fantastic as a species tank—tons of personality, zero drama with other species because there aren’t any.
Breeding tips (if you want to try it)
Breeding tiger barbs is doable at home, and it’s pretty fun because they’re enthusiastic spawners. The trick is keeping the adults from eating the eggs—because they absolutely will.
- Use a separate breeding tank (10–20 gal) with a sponge filter
- Add marbles, a spawning grid, or a thick layer of java moss so eggs fall out of reach
- Condition adults with frozen/live foods for a week or two
- Put a pair or small group in the breeding tank; spawning often happens in the morning
- Remove adults right after you see spawning/egg scatter
- Eggs hatch in about 1–2 days; start fry on infusoria/liquid fry food, then baby brine shrimp
If you’re not getting spawns, try a small cool-water change (like a “rain” event) and feed heavy the day before. That combo has kicked it off for me more than once.
Common problems to watch for
Most tiger barb issues are really “setup” issues: too few barbs, too small a tank, or tankmates that can’t handle their energy. Fix those and they’re pretty forgiving beginner fish.
- Fin nipping: almost always from small groups or mixed with slow/long-finned fish
- Stress/faded color: bare tank, no cover, or being kept in a tiny group
- Ich/white spot: common after new fish or temperature swings—quarantine helps a ton
- Bloat/constipation: from overfeeding rich foods; add fiber (daphnia/veg) and cut back
- Ammonia/nitrite spikes: they’re messy eaters—stay on top of maintenance and don’t overstock
Don’t trust “they’re fine in a trio.” Three tiger barbs is basically a bully simulator. Go bigger on the group and the whole tank gets calmer.
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