Photo: Internet Archive Book Images (Public domain) — via Wikimedia Commons
Clown Barb (Puntius everetti)
A boldly spotted, shoaling barb that brings vivid orange and black contrast to larger community tanks.
Will it live with a Clown Barb?
We compare each fish against your clown barb on temperament, size, water parameters and swimming zone. Set your tank size and filter the results.
- Banjo Catfish✅ CompatiblePeaceful · 15 cm · Medium care · 20–26 °C (68–79 °F)
- Semi-aggressive + Peaceful, but with no direct clash here; temperature, pH and hardness ranges all overlap and neither outsizes the other enough to be a threat.
- Keep Clown Barb in a shoal of 6+ or it gets stressed and nippy.
- Bearded Corydoras✅ CompatiblePeaceful · 10 cm · Medium care · 18–24 °C (64–75 °F)
- Semi-aggressive + Peaceful, but with no direct clash here; temperature, pH and hardness ranges all overlap and neither outsizes the other enough to be a threat.
- Keep Clown Barb in a shoal of 6+ or it gets stressed and nippy.
- Keep Bearded Corydoras in a shoal of 6+ or it gets stressed and nippy.
- Bristlenose Pleco✅ CompatiblePeaceful · 12 cm · Easy care · 23–30 °C (73–86 °F)
- Compatible on the things that matter: shared water near 24–30 °C, workable temperaments, and no predator-and-prey size gap.
- Keep Clown Barb in a shoal of 6+ or it gets stressed and nippy.
- Burmese Loach✅ CompatiblePeaceful · 9 cm · Easy care · 22–28 °C (72–82 °F)
- Semi-aggressive + Peaceful, but with no direct clash here, and their water overlaps around 24–28 °C — no size, zone or temperament conflicts.
- Keep Clown Barb in a shoal of 6+ or it gets stressed and nippy.
- Clown Pleco✅ CompatiblePeaceful · 9 cm · Medium care · 24–28 °C (75–82 °F)
- Semi-aggressive + Peaceful, but with no direct clash here, and their water overlaps around 24–28 °C — no size, zone or temperament conflicts.
- Keep Clown Barb in a shoal of 6+ or it gets stressed and nippy.
- Corydoras Catfish✅ CompatiblePeaceful · 6.5 cm · Easy care · 22–26 °C (72–79 °F)
- Compatible on the things that matter: shared water near 24–26 °C, workable temperaments, and no predator-and-prey size gap.
- Keep Clown Barb in a shoal of 6+ or it gets stressed and nippy.
- Keep Corydoras Catfish in a shoal of 6+ or it gets stressed and nippy.
- Giant Kuhli Loach✅ CompatiblePeaceful · 12 cm · Easy care · 24–30 °C (75–86 °F)
- Semi-aggressive + Peaceful, but with no direct clash here, and their water overlaps around 24–30 °C — no size, zone or temperament conflicts.
- Keep Clown Barb in a shoal of 6+ or it gets stressed and nippy.
- Kuhli Loach✅ CompatiblePeaceful · 10 cm · Easy care · 24–30 °C (75–86 °F)
- Compatible on the things that matter: shared water near 24–30 °C, workable temperaments, and no predator-and-prey size gap.
- Keep Clown Barb in a shoal of 6+ or it gets stressed and nippy.
- Leopard Frog Pleco✅ CompatiblePeaceful · 9 cm · Medium care · 25–30 °C (77–86 °F)
- Semi-aggressive + Peaceful, but with no direct clash here, and their water overlaps around 25–30 °C — no size, zone or temperament conflicts.
- Keep Clown Barb in a shoal of 6+ or it gets stressed and nippy.
- Marbled Hoplo✅ CompatiblePeaceful · 14 cm · Easy care · 22–28 °C (72–82 °F)
- Compatible on the things that matter: shared water near 24–28 °C, workable temperaments, and no predator-and-prey size gap.
- Keep Clown Barb in a shoal of 6+ or it gets stressed and nippy.
- Medusa Pleco✅ CompatiblePeaceful · 12 cm · Medium care · 26–30 °C (79–86 °F)
- Compatible on the things that matter: shared water near 26–30 °C, workable temperaments, and no predator-and-prey size gap.
- Keep Clown Barb in a shoal of 6+ or it gets stressed and nippy.
- Pantanal Corydoras✅ CompatiblePeaceful · 8 cm · Medium care · 22–27 °C (72–81 °F)
- Compatible on the things that matter: shared water near 24–27 °C, workable temperaments, and no predator-and-prey size gap.
- Keep Clown Barb in a shoal of 6+ or it gets stressed and nippy.
- Keep Pantanal Corydoras in a shoal of 6+ or it gets stressed and nippy.
- Peppered Corydoras✅ CompatiblePeaceful · 7 cm · Easy care · 18–26 °C (64–79 °F)
- Semi-aggressive + Peaceful, but with no direct clash here; temperature, pH and hardness ranges all overlap and neither outsizes the other enough to be a threat.
- Keep Clown Barb in a shoal of 6+ or it gets stressed and nippy.
- Keep Peppered Corydoras in a shoal of 6+ or it gets stressed and nippy.
- Porthole Catfish✅ CompatiblePeaceful · 10 cm · Easy care · 22–28 °C (72–82 °F)
- Semi-aggressive + Peaceful, but with no direct clash here; temperature, pH and hardness ranges all overlap and neither outsizes the other enough to be a threat.
- Keep Clown Barb in a shoal of 6+ or it gets stressed and nippy.
- Rubber Lip Pleco✅ CompatiblePeaceful · 12 cm · Easy care · 20–26 °C (68–79 °F)
- Compatible on the things that matter: shared water near 24–26 °C, workable temperaments, and no predator-and-prey size gap.
- Keep Clown Barb in a shoal of 6+ or it gets stressed and nippy.
- Spotfin Corydoras✅ CompatiblePeaceful · 6.5 cm · Easy care · 22–26 °C (72–79 °F)
- Semi-aggressive + Peaceful, but with no direct clash here, and their water overlaps around 24–26 °C — no size, zone or temperament conflicts.
- Keep Clown Barb in a shoal of 6+ or it gets stressed and nippy.
- Keep Spotfin Corydoras in a shoal of 6+ or it gets stressed and nippy.
- Spotted Corydoras✅ CompatiblePeaceful · 7 cm · Easy care · 22–27 °C (72–81 °F)
- Compatible on the things that matter: shared water near 24–27 °C, workable temperaments, and no predator-and-prey size gap.
- Keep Clown Barb in a shoal of 6+ or it gets stressed and nippy.
- Keep Spotted Corydoras in a shoal of 6+ or it gets stressed and nippy.
- Spotted Rubbernose Pleco✅ CompatiblePeaceful · 12 cm · Medium care · 20–26 °C (68–79 °F)
- Semi-aggressive + Peaceful, but with no direct clash here, and their water overlaps around 24–26 °C — no size, zone or temperament conflicts.
- Keep Clown Barb in a shoal of 6+ or it gets stressed and nippy.
- Spotted Talking Catfish✅ CompatiblePeaceful · 15 cm · Easy care · 22–26 °C (72–79 °F)
- Compatible on the things that matter: shared water near 24–26 °C, workable temperaments, and no predator-and-prey size gap.
- Keep Clown Barb in a shoal of 6+ or it gets stressed and nippy.
- Sterbai Corydoras✅ CompatiblePeaceful · 6.5 cm · Medium care · 24–30 °C (75–86 °F)
- Semi-aggressive + Peaceful, but with no direct clash here, and their water overlaps around 24–30 °C — no size, zone or temperament conflicts.
- Keep Clown Barb in a shoal of 6+ or it gets stressed and nippy.
- Keep Sterbai Corydoras in a shoal of 6+ or it gets stressed and nippy.
- Striped Eel Loach✅ CompatiblePeaceful · 12 cm · Medium care · 24–28 °C (75–82 °F)
- Compatible on the things that matter: shared water near 24–28 °C, workable temperaments, and no predator-and-prey size gap.
- Keep Clown Barb in a shoal of 6+ or it gets stressed and nippy.
- Upside-down Catfish✅ CompatiblePeaceful · 10 cm · Easy care · 22–26 °C (72–79 °F)
- Semi-aggressive + Peaceful, but with no direct clash here, and their water overlaps around 24–26 °C — no size, zone or temperament conflicts.
- Keep Clown Barb in a shoal of 6+ or it gets stressed and nippy.
- Zebra Loach✅ CompatiblePeaceful · 9 cm · Medium care · 23–26 °C (73–79 °F)
- Semi-aggressive + Peaceful, but with no direct clash here, and their water overlaps around 24–26 °C — no size, zone or temperament conflicts.
- Keep Clown Barb in a shoal of 6+ or it gets stressed and nippy.
- Zebra Pleco✅ CompatiblePeaceful · 10 cm · Hard care · 26–30 °C (79–86 °F)
- Semi-aggressive + Peaceful, but with no direct clash here, and their water overlaps around 26–30 °C — no size, zone or temperament conflicts.
- Keep Clown Barb in a shoal of 6+ or it gets stressed and nippy.
- Angelfish⚠️ With cautionSemi-aggressive · 15 cm · Medium care · 24–30 °C (75–86 °F)
- Both are a bit pushy (semi-aggressive + semi-aggressive) — workable only in a larger tank with cover and broken sight lines.
- Keep Clown Barb in a shoal of 6+ or it gets stressed and nippy.
- Blue Flash Cichlid⚠️ With cautionSemi-aggressive · 15 cm · Medium care · 24–28 °C (75–82 °F)
- pH preferences only just meet (Clown Barb 6–6.5 vs Blue Flash Cichlid 7–8) — target the overlap and acclimate slowly.
- Clown Barb and Blue Flash Cichlid can both be territorial; doable with space and dense planting, but watch for chasing.
- Your 132 L tank is below the ~210 L this pairing really wants — crowding raises aggression.
- Keep Clown Barb in a shoal of 6+ or it gets stressed and nippy.
- Calvus Cichlid⚠️ With cautionSemi-aggressive · 14 cm · Medium care · 24–27 °C (75–81 °F)
- Different pH ranges (6–6.5 vs 7.8–9); doable if you sit in the shared band, but not ideal long-term.
- Both are a bit pushy (semi-aggressive + semi-aggressive) — workable only in a larger tank with cover and broken sight lines.
- Keep Clown Barb in a shoal of 6+ or it gets stressed and nippy.
- Denison Barb⚠️ With cautionPeaceful · 15 cm · Medium care · 18–25 °C (64–77 °F)
- Expect Clown Barb to harass Denison Barb at times; give dense cover and watch them at feeding.
- Your 132 L tank is below the ~200 L this pairing really wants — crowding raises aggression.
- Keep Clown Barb in a shoal of 6+ or it gets stressed and nippy.
- Keep Denison Barb in a shoal of 6+ or it gets stressed and nippy.
- Dolphin Cichlid⚠️ With cautionSemi-aggressive · 15 cm · Medium care · 23–28 °C (73–82 °F)
- Both are a bit pushy (semi-aggressive + semi-aggressive) — workable only in a larger tank with cover and broken sight lines.
- Your 132 L tank is below the ~208 L this pairing really wants — crowding raises aggression.
- Keep Clown Barb in a shoal of 6+ or it gets stressed and nippy.
- Electric Blue Acara⚠️ With cautionSemi-aggressive · 16 cm · Medium care · 22–28 °C (72–82 °F)
- Both are a bit pushy (semi-aggressive + semi-aggressive) — workable only in a larger tank with cover and broken sight lines.
- Clown Barb is a notorious fin-nipper — even though Electric Blue Acara is larger, an active shoal will harass its trailing fins. Only safe in a full group of 6+ with plenty of cover.
- Keep Clown Barb in a shoal of 6+ or it gets stressed and nippy.
- Emperor Peacock Cichlid⚠️ With cautionSemi-aggressive · 16 cm · Medium care · 24–28 °C (75–82 °F)
- pH preferences only just meet (Clown Barb 6–6.5 vs Emperor Peacock Cichlid 7.6–8.6) — target the overlap and acclimate slowly.
- Clown Barb and Emperor Peacock Cichlid can both be territorial; doable with space and dense planting, but watch for chasing.
- Emperor Peacock Cichlid is slow and long-finned; a busy clown barb shoal tends to nip at it. Keep clown barb in a proper group of 6+ and watch them closely.
- Your 132 L tank is below the ~210 L this pairing really wants — crowding raises aggression.
- Keep Clown Barb in a shoal of 6+ or it gets stressed and nippy.
- Eureka Red Peacock Cichlid⚠️ With cautionSemi-aggressive · 15 cm · Medium care · 24–28 °C (75–82 °F)
- Different pH ranges (6–6.5 vs 7.8–8.6); doable if you sit in the shared band, but not ideal long-term.
- Both are a bit pushy (semi-aggressive + semi-aggressive) — workable only in a larger tank with cover and broken sight lines.
- Your 132 L tank is below the ~200 L this pairing really wants — crowding raises aggression.
- Keep Clown Barb in a shoal of 6+ or it gets stressed and nippy.
- Firemouth Cichlid⚠️ With cautionSemi-aggressive · 15 cm · Medium care · 22–29 °C (72–84 °F)
- Clown Barb and Firemouth Cichlid can both be territorial; doable with space and dense planting, but watch for chasing.
- Your 132 L tank is below the ~200 L this pairing really wants — crowding raises aggression.
- Keep Clown Barb in a shoal of 6+ or it gets stressed and nippy.
- Giant Glass Catfish⚠️ With cautionPeaceful · 15 cm · Medium care · 22–27 °C (72–81 °F)
- Expect Clown Barb to harass Giant Glass Catfish at times; give dense cover and watch them at feeding.
- Keep Clown Barb in a shoal of 6+ or it gets stressed and nippy.
- Gold Zebra Loach⚠️ With cautionSemi-aggressive · 15 cm · Medium care · 25–29 °C (77–84 °F)
- Both are a bit pushy (semi-aggressive + semi-aggressive) — workable only in a larger tank with cover and broken sight lines.
- Keep Clown Barb in a shoal of 6+ or it gets stressed and nippy.
- Green Phantom Pleco⚠️ With cautionSemi-aggressive · 15 cm · Medium care · 26–30 °C (79–86 °F)
- Both are a bit pushy (semi-aggressive + semi-aggressive) — workable only in a larger tank with cover and broken sight lines.
- Your 132 L tank is below the ~150 L this pairing really wants — crowding raises aggression.
- Keep Clown Barb in a shoal of 6+ or it gets stressed and nippy.
- Moonlight Gourami⚠️ With cautionPeaceful · 15 cm · Easy care · 25–30 °C (77–86 °F)
- Clown Barb is semi-aggressive and may chase or nip the smaller Moonlight Gourami — plant heavily and break up sight lines.
- Keep Clown Barb in a shoal of 6+ or it gets stressed and nippy.
- Rainbow Cichlid⚠️ With cautionSemi-aggressive · 14 cm · Easy care · 22–28 °C (72–82 °F)
- Different pH ranges (6–6.5 vs 7–8); doable if you sit in the shared band, but not ideal long-term.
- Both are a bit pushy (semi-aggressive + semi-aggressive) — workable only in a larger tank with cover and broken sight lines.
- Keep Clown Barb in a shoal of 6+ or it gets stressed and nippy.
- Snowball Pleco⚠️ With cautionPeaceful · 16 cm · Medium care · 24–30 °C (75–86 °F)
- Your 132 L tank is below the ~150 L this pairing really wants — crowding raises aggression.
- Keep Clown Barb in a shoal of 6+ or it gets stressed and nippy.
- Yoyo Loach⚠️ With cautionSemi-aggressive · 15 cm · Medium care · 24–30 °C (75–86 °F)
- Clown Barb and Yoyo Loach can both be territorial; doable with space and dense planting, but watch for chasing.
- Keep Clown Barb in a shoal of 6+ or it gets stressed and nippy.
- Alligator Gar⛔ Not recommendedAggressive · 250 cm · Hard care · 24–28 °C (75–82 °F)
- Two assertive fish, one genuinely aggressive: Clown Barb and Alligator Gar will hold territory and clash.
- Alligator Gar (250 cm) is big enough to swallow the 15 cm Clown Barb whole.
- pH preferences only just meet (Clown Barb 6–6.5 vs Alligator Gar 6.8–7.8) — target the overlap and acclimate slowly.
- Alligator Gar is slow and long-finned; a busy clown barb shoal tends to nip at it. Keep clown barb in a proper group of 6+ and watch them closely.
- Your 132 L tank is below the ~3785 L this pairing really wants — crowding raises aggression.
- Keep Clown Barb in a shoal of 6+ or it gets stressed and nippy.
- Clown Knifefish⛔ Not recommendedAggressive · 90 cm · Hard care · 24–28 °C (75–82 °F)
- Clown Barb and Clown Knifefish are both territorial and at least one is outright aggressive — expect serious fighting.
- Clown Barb is bite-sized to a 90 cm predatory clown knifefish — it will be eaten.
- Your 132 L tank is below the ~750 L this pairing really wants — crowding raises aggression.
- Keep Clown Barb in a shoal of 6+ or it gets stressed and nippy.
- Fire Eel⛔ Not recommendedSemi-aggressive · 100 cm · Medium care · 24–28 °C (75–82 °F)
- Clown Barb is bite-sized to a 100 cm predatory fire eel — it will be eaten.
- Both are a bit pushy (semi-aggressive + semi-aggressive) — workable only in a larger tank with cover and broken sight lines.
- Your 132 L tank is below the ~380 L this pairing really wants — crowding raises aggression.
- Keep Clown Barb in a shoal of 6+ or it gets stressed and nippy.
- Koi⛔ Not recommendedPeaceful · 90 cm · Medium care · 4–28 °C (39–82 °F)
- Koi (90 cm) is big enough to swallow the 15 cm Clown Barb whole.
- Clown Barb is a notorious fin-nipper — even though Koi is larger, an active shoal will harass its trailing fins. Only safe in a full group of 6+ with plenty of cover.
- Your 132 L tank is below the ~3800 L this pairing really wants — crowding raises aggression.
- Keep Clown Barb in a shoal of 6+ or it gets stressed and nippy.
- Redtail Catfish⛔ Not recommendedAggressive · 120 cm · Hard care · 24–27 °C (75–81 °F)
- Two assertive fish, one genuinely aggressive: Clown Barb and Redtail Catfish will hold territory and clash.
- Clown Barb is bite-sized to a 120 cm predatory redtail catfish — it will be eaten.
- Your 132 L tank is below the ~5700 L this pairing really wants — crowding raises aggression.
- Keep Clown Barb in a shoal of 6+ or it gets stressed and nippy.
- Spotted Gar⛔ Not recommendedAggressive · 90 cm · Hard care · 18–26 °C (64–79 °F)
- Two assertive fish, one genuinely aggressive: Clown Barb and Spotted Gar will hold territory and clash.
- Spotted Gar (90 cm) is big enough to swallow the 15 cm Clown Barb whole.
- Spotted Gar is slow and long-finned; a busy clown barb shoal tends to nip at it. Keep clown barb in a proper group of 6+ and watch them closely.
- Your 132 L tank is below the ~600 L this pairing really wants — crowding raises aggression.
- Keep Clown Barb in a shoal of 6+ or it gets stressed and nippy.
- Wels Catfish⛔ Not recommendedAggressive · 300 cm · Hard care · 15–25 °C (59–77 °F)
- Two assertive fish, one genuinely aggressive: Clown Barb and Wels Catfish will hold territory and clash.
- Wels Catfish (300 cm) is big enough to swallow the 15 cm Clown Barb whole.
- Your 132 L tank is below the ~20000 L this pairing really wants — crowding raises aggression.
- Keep Clown Barb in a shoal of 6+ or it gets stressed and nippy.
- Wolf Cichlid⛔ Not recommendedAggressive · 72 cm · Hard care · 24–30 °C (75–86 °F)
- Clown Barb and Wolf Cichlid are both territorial and at least one is outright aggressive — expect serious fighting.
- Wolf Cichlid (72 cm) is big enough to swallow the 15 cm Clown Barb whole.
- Different pH ranges (6–6.5 vs 7–8); doable if you sit in the shared band, but not ideal long-term.
- Clown Barb is a notorious fin-nipper — even though Wolf Cichlid is larger, an active shoal will harass its trailing fins. Only safe in a full group of 6+ with plenty of cover.
- Your 132 L tank is below the ~760 L this pairing really wants — crowding raises aggression.
- Keep Clown Barb in a shoal of 6+ or it gets stressed and nippy.
Compatibility is computed from each species' care data — a strong starting point, not a guarantee. Individual temperament varies, so always introduce new fish slowly and watch them.
Clown Barb care specs
- Care level
- Medium
- Breeding
- Hard
- Max size
- 15 cm (5.9 in)
- Min tank size
- 132 L (34.9 gal)
- Temperature
- 24–30 °C (75–86 °F)
- pH
- 6–6.5
- Hardness
- 6–16 dGH
- Lifespan
- 5–8 years
- Diet
- Omnivore
- Swim level
- Middle
- Group size
- 6+ (shoaling)
- Family
- Cyprinidae
- Origin
- Borneo and the Malay Peninsula (slow-moving, forested streams)
What is a Clown Barb?
The Clown Barb (Puntius everetti) is a striking, medium-to-large cyprinid native to the forested streams of Borneo and the Malay Peninsula. Reaching up to 15 cm (6 in), it is considerably larger than familiar relatives like the cherry or tiger barb and brings a different visual weight to a community tank. The body is a warm orange-red, broken by bold black spots, with fins edged in deep red and black — the colouration that earns it the “clown” name. Fish in the trade have been captive-bred for decades and are reliably available, though some taxonomic revision has placed it variously under Puntius and Barbodes.
Like all barbs, the Clown Barb is a social animal that must be kept in a group of at least six. A lone fish or a pair becomes stressed and nippy; a proper-sized shoal channels competitive energy inward, producing relaxed, freely swimming fish that display their best colour. This is a fish for a spacious, well-planted tank with serious filtration — rewarding to keep well, but unforgiving of cramped conditions.
Where do Clown Barbs come from?
Clown Barbs originate from the slow-moving, heavily vegetated freshwater streams and rivers of Borneo and the Malay Peninsula. These blackwater and clearwater habitats are typically shaded by rainforest canopy, producing warm, soft, and slightly acidic conditions. The water is often tinted with tannins leached from leaf litter and submerged wood, keeping the pH on the lower side and the hardness modest.
Understanding this origin helps explain every parameter demand the species makes in captivity: it wants warmth, gentle flow, soft-to-slightly-hard water, acidic pH, and an environment with visual cover. Replicating that shaded, structured habitat produces calmer, more settled fish.
What size tank does a Clown Barb need?
The minimum is 132 L (35 gal), and the footprint matters as much as the volume. Because Clown Barbs are active, middle-water swimmers that reach 15 cm (6 in), the tank must be at least 120 cm (4 ft) long to give a shoal of six genuine swimming room. In a short or cube-format tank, even a large volume produces crowding and elevated aggression.
For a comfortable long-term display — especially with six or more fish approaching adult size — aim for 200 L (53 gal) or larger in a standard 4-foot or 5-foot footprint. Decorate with a dark substrate, driftwood, and robust background and midground plants to break sightlines and create the dappled, forested feel they come from. Leave clear open lanes across the front and middle for active swimming. Excellent filtration is non-negotiable: larger, meatier fish produce substantial waste, and this species is sensitive to accumulated pollutants. A canister filter or a powerful hang-on-back, combined with regular weekly water changes, is the baseline.
What water parameters do Clown Barbs need?
- Temperature: 24–30 °C (75–86 °F) — a heater is required.
- pH: 6.0–6.5 — soft and acidic, mirroring their blackwater/clearwater origin.
- Hardness: 6–16 dGH — tolerates a moderate range, but softer water on the lower end of this bracket is preferable for long-term health.
Stability is more important than hitting a precise number. Cycle the tank fully before adding fish, maintain a consistent temperature, and never skip water changes. Sudden swings in pH or temperature stress the shoal quickly. If your tap water is hard and alkaline, consider blending with RO water or using a peat-filtered or driftwood-rich setup to nudge pH down naturally.
What do Clown Barbs eat?
Clown Barbs are omnivores with a broad appetite, which makes feeding straightforward. A good-quality sinking or floating pellet or granule designed for medium barbs or cyprinids forms a reliable staple. Supplement regularly with:
- Frozen or live foods: bloodworms, daphnia, and brine shrimp to trigger natural foraging and enhance colour.
- Vegetable matter: blanched spinach, cucumber, or spirulina-based foods — Clown Barbs will browse soft plant tissue, so fast-growing or tough-leaved species (java fern, anubias) are recommended over delicate stem plants.
Feed once or twice daily in amounts the shoal consumes within a couple of minutes. Overfeeding contributes to waste load in a tank that already needs strong filtration. A fasted day once a week is beneficial.
Are Clown Barbs aggressive — and what fish can live with them?
Clown Barbs are rated semi-aggressive, and the main expression of that aggression is fin-nipping. This tendency is strongly reduced — though not eliminated — when the shoal is kept at six or more individuals, because social competition stays within the group rather than being directed at other species. In an undersized group of two or three, fin-nipping escalates significantly.
Poor tank-mate choices include bettas, angelfish, fancy guppies, and any slow-moving or long-finned fish. Good community partners are robust, similarly sized, and fast enough to avoid persistent attention: medium to large tetras, rainbowfish, loaches (botia species), other active barbs, and similarly sized catfish. Bottom-dwellers like larger corydoras or plecos typically share the space without incident since they occupy a different level.
For a complete, filtered list of compatible and incompatible species, see Clown Barb tank mates.
How do you tell male and female Clown Barbs apart?
Sexual dimorphism in Clown Barbs is moderate and easiest to read on well-conditioned adult fish. Females are noticeably deeper-bodied and fuller in the belly when mature, especially when carrying eggs. This rounder profile is visible from above as well as from the side. Males are slimmer in profile and typically display more intense colouration — a richer orange-red base and more strongly contrasting black markings. The difference is subtle in juveniles and only becomes reliable once the fish approach adult size, typically above 8–10 cm (3–4 in).
How do Clown Barbs breed?
Breeding Clown Barbs is rated hard and is generally undertaken by experienced hobbyists rather than as a casual community-tank event. They are egg-scatterers that provide no parental care; in a community setting the eggs and fry are quickly consumed by tank-mates and by the adults themselves.
A dedicated breeding setup is required: a separate tank with fine-leaved plants or a mesh bottom to protect falling eggs, soft and acidic water (pH 6.0–6.5, temperature toward the upper end of the range at 27–30 °C / 80–86 °F), and a well-conditioned pair or group. After spawning, adults should be removed promptly. Eggs hatch in roughly 24–48 hours and fry become free-swimming within a few days, initially requiring infusoria or very fine powdered foods before graduating to baby brine shrimp. Raising a successful brood demands close attention and good water quality throughout.
What diseases are common in Clown Barbs?
Clown Barbs are generally hardy when their water parameters are maintained, but they are susceptible to the diseases typical of tropical freshwater fish:
- Ich (white spot): Small white spots across the body and fins, triggered by temperature swings or stress. Prevention means stable heat and avoiding sudden parameter changes.
- Fin rot: Fraying or receding fin edges caused by bacterial infection, almost always linked to poor water quality. Regular water changes are the primary prevention.
- Fungal infections: White or cotton-like patches, often secondary to injury or existing stress. Good water hygiene and avoiding overcrowding greatly reduce risk.
- Internal parasites: Occasional in wild-caught fish or when feeding live foods. Quarantining new fish for 2–4 weeks before introduction protects the display tank.
Health note: medication dosing and precise disease diagnosis are beyond the scope of a care profile. If a fish shows symptoms, confirm the condition against a reputable aquatic veterinary or fish-health resource before medicating. Treating the water quality first is almost always the right first step.
How long do Clown Barbs live?
With good care, Clown Barbs live 5–8 years. That lifespan is on the longer end for a barb and reflects the investment a proper setup represents — a 200 L+ tank, a shoal of six, and consistent maintenance. Fish kept in undersized conditions, with inconsistent water changes, or in poorly compatible community tanks will underperform on longevity. Get the basics right — stable warm water, varied diet, a proper shoal, and good filtration — and a group of Clown Barbs will be a centrepiece worth keeping for the better part of a decade.
Frequently asked questions
Will Clown Barbs nip fins?
Yes — like most barbs they are moderately fin-nippy, especially if kept in small groups or with slow, long-finned tank-mates. Keep them in groups of 6+ so attention stays within the shoal, and avoid pairing them with bettas, angelfish or fancy guppies.
How large do Clown Barbs get?
Up to 15 cm (about 6 in), making them one of the larger barb species. That size means they need a minimum 132 L (35 gal) tank that is at least 120 cm (4 ft) long so the shoal has real swimming room.
What you need to keep a clown barb
The baseline is a heated, filtered 132 L+ tank: a reliable heater to hold 24–30 °C (75–86 °F), a gentle filter that won't batter a clown barb in the current, and a tight-fitting lid. Cycle the tank fully before adding any fish.
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