Clown Barb (Barbodes everetti)
Quick Answer
Clown Barb (Barbodes everetti) is a large, peaceful schooling cyprinid native to Borneo. It reaches 5.9 inches (15 cm) and requires a minimum 55 gallon (208 L) aquarium for adult schools. This omnivore thrives in soft, slightly acidic water (pH 6.0-7.0, 2-12 dGH) at 75-82°F (24-28°C) and is completely plant-safe.
Quick Facts
| Scientific Name | Barbodes everetti |
|---|---|
| Common Names | Clown Barb |
| Family | Cyprinidae |
| Genus | Barbodes |
| Type | Freshwater |
| Temperament | peaceful |
| Care Difficulty | beginner |
| Lifespan | 15 years |
| Maximum Size | Up to 5.9 in (15 cm) |
| Diet | Omnivore |
| Temperature | 75–82°F (24–28°C) |
| pH | 6–7 |
| Hardness | 2–12 dGH |
| Minimum Size | 55 gallons |
Key Takeaways
- Reaches 5.9 inches (15 cm) - significantly larger than most barbs
- Documented lifespan up to 15 years in well-maintained aquariums
- Requires 55 gallon (208 L) minimum for adult school of 6
- Peaceful and plant-safe, unlike Tiger Barbs or Tinfoil Barbs
- Obligate schooling species; minimum group of 6, optimal 8-12
- Requires 40-50% vegetable matter in diet for optimal health
- Native to Borneo forest streams and shallow puddles under 6 inches deep
- Cooler water change (3-5°F drop) triggers spawning behavior
- Dark substrate and subdued lighting essential for best coloration
- Scientific name Barbodes everetti; frequently misidentified as Puntius everetti
Overview
Species Overview
The Clown Barb (Barbodes everetti) is one of the most underappreciated large barbs in the freshwater aquarium hobby. Despite reaching nearly 6 inches (15 cm) and possessing a documented lifespan of up to 15 years, it remains overshadowed by smaller, more commonly available species like Tiger Barbs and Cherry Barbs. This is a mistake. A well-maintained school of adult Clown Barbs represents one of the most visually impressive displays available to the medium-to-large community aquarist.
Taxonomy and Nomenclature
For decades, the aquarium trade has misidentified this species. The correct scientific name is Barbodes everetti (Boulenger, 1894), though you will frequently encounter it listed as Puntius everetti, Barbus everetti, or Systomus everetti in older literature. It is also commonly confused with Barbodes dunckeri, a similar species from the Malay Peninsula that has larger body markings and 4.5 scales above the lateral line versus B. everetti's different scale arrangement. When purchasing, verify the scientific name with your supplier.
Natural History and Distribution
True Barbodes everetti is native exclusively to Borneo. The type locality is Poeh in Sarawak state, East Malaysia, and the species may be endemic to Sarawak plus adjacent parts of Kalimantan Barat (West Kalimantan) province in Indonesian Borneo. Claims of Sumatran distribution remain unverified by ichthyological surveys.
It inhabits clear forest streams in foothill zones and, remarkably, shallow forest floor puddles less than 6 inches (15 cm) deep. In swiftly-moving stream sections, it congregates in quieter marginal zones. Sympatric species include Rasbora sarawakensis, Barbodes banksi, and B. kuchingensis. The habitat is typically tannin-stained with submerged leaf litter, driftwood, and dense riparian vegetation.
Physical Description
Adult Clown Barbs reach a maximum total length of 5.9 inches (15 cm), though 4-5 inches (10-13 cm) is more common in aquariums. The body is elongated and moderately deep with a distinctive color pattern: a golden-yellow to copper base color overlaid with three large, irregular black blotches along the flank. Mature specimens, particularly males, develop intense orange and red tones on the fins and body that intensify under subdued lighting with dark substrate.
The mouth is terminal with well-developed barbels used for sifting substrate. There is no reliable external sexual dimorphism in juveniles; mature females are rounder-bodied when gravid, while males may show slightly more intense coloration.
Diet
Diet and Nutrition
Clown Barbs are true omnivores with a dietary requirement for vegetable matter that most competitors fail to emphasize. Unlike Tiger Barbs or Rosy Barbs, which are more protein-biased, Clown Barbs genuinely need plant fiber for digestive health and optimal coloration.
Health
Health and Disease Management
Clown Barbs are generally hardy and disease-resistant when provided with stable water parameters and adequate space. Their primary vulnerability is stress-induced illness from poor water quality, inadequate school size, or inappropriate tank mates.
Ichthyophthirius multifiliis (Ich / White Spot Disease)
The most common protozoan parasite in freshwater aquariums. Presents as small white salt-like spots on skin and fins. Highly contagious and potentially fatal if untreated, particularly in stressed fish.
- Small white nodules (0.5-1.0 mm) on skin, fins, and gills; flashing against rocks and substrate; rubbing on decorations; respiratory distress; clamped fins; loss of appetite
Introduction via contaminated water, plants, or infected fish. Triggered by temperature fluctuations, transport stress, or immune suppression from poor water quality. The parasite has a complex life cycle with free-swimming theront stage.
Quarantine all new livestock for 2-4 weeks. Avoid temperature swings greater than 2°F (1.1°C) daily. Treatment: raise temperature to 82-86°F (28-30°C) and add aquarium salt at 1 tablespoon per 5 gallons (3.8 L). Maintain for 14 days. For severe infections, use copper-based medication (Cupramine at 0.15 mg/L) or formalin at 25 ppm. Remove activated carbon during treatment.
Columnaris (Cotton Wool Disease / Mouth Fungus)
A bacterial infection caused by Flavobacterium columnare. Often mistaken for fungal infection due to cottony appearance. Progresses rapidly and can kill within 48 hours in warm water.
- White or grayish cotton-like patches on mouth, fins, or body; frayed fins with white margins; lethargy; loss of appetite; rapid breathing; ulcers on skin
Stress from poor water quality (elevated nitrates, ammonia spikes), overcrowding, or aggressive tank mates. The bacterium is opportunistic and present in most aquariums, attacking immunocompromised fish.
Maintain nitrates below 20 ppm through weekly 30-50% water changes. Avoid overcrowding. Treatment: immediate water change (50%) followed by antibiotic therapy. Effective medications include Kanamycin (5 mg/L), Nitrofurazone (25 ppm bath), or combination treatments like API Furan-2. Remove carbon during treatment. Increase aeration as medications reduce dissolved oxygen.
Fin Rot (Bacterial)
A bacterial infection causing progressive erosion of fin tissue. Usually indicates underlying water quality issues or stress. Early stages are easily reversible; advanced stages can infect the body wall.
- Frayed, ragged, or receding fin edges; white or red discoloration at fin margins; inflammation at fin base; in advanced cases, body ulcers and systemic infection
Maintain pristine water parameters with zero ammonia and nitrite. Use smooth-edged decorations. Treat primary infections promptly. Early-stage fin rot often resolves with 50% water changes every 48 hours and improved filtration. Advanced cases require antibiotics: Maracyn (Erythromycin) or Maracyn 2 (Minocycline) for 5-7 days.
Internal Parasites (Nematodes and Protozoa)
Common in farm-raised fish. Nematodes (roundworms), trematodes (flukes), and flagellates (Hexamita, Spironucleus) infect the gastrointestinal tract. Often asymptomatic until fish is stressed.
- White stringy feces; weight loss despite normal appetite; sunken belly; lethargy; reduced coloration; sporadic appetite; wasting disease appearance
Ingestion of contaminated food or introduction via infected livestock. Overcrowding and poor diet exacerbate parasite loads. Stress from transport or water quality issues triggers symptomatic outbreaks.
Quarantine new fish for 2-4 weeks. Purchase from reputable breeders when possible. Treatment: medicated food containing Praziquantel (25 mg/kg food) and Metronidazole (50 mg/kg food) for 10-14 days. Use Seachem Focus to bind medication to food. For severe cases, bath treatment with Levamisole (2 mg/L) for 24 hours.
Velvet Disease (Piscinoodinium pillulare)
A dinoflagellate parasite similar to marine velvet but adapted to freshwater. Less common than Ich but more virulent. Often fatal within 72 hours if untreated due to heavy gill infestation.
- Fine gold, rust, or velvety dusting on skin and fins; lethargy; rapid gill movement; clamped fins; refusal to eat; fish may scratch against substrate; respiratory distress is often first sign
Introduction via infected fish or plants. The dinospore stage is motile and seeks hosts. Outbreaks are common in tanks with poor gas exchange, warm temperatures, and stressed fish.
Quarantine all new arrivals. Maintain excellent surface agitation and gas exchange. Treatment: raise temperature to 82-86°F (28-30°C), darken tank (cover with blanket), and add copper-based medication (Cupramine at 0.15 mg/L) for 14 days. Alternatively, use acriflavine or Victoria Green-based medications. Salt treatment alone is ineffective against velvet.
Breeding
Captive Breeding Protocol
Clown Barbs are egg-scattering free spawners with no parental care. While they will occasionally spawn in community tanks, dedicated breeding setups are required for successful fry rearing. The breeding trigger is a detail most competitors miss entirely.
Compatible Tank Mates
Species Comparison
| Feature | Clown Barb (Barbodes everetti) | Tiger Barb (Puntius tetrazona) | Odessa Barb (Pethia padamya) | Denison Barb (Sahyadria denisonii) |
|---|---|---|---|---|
| Maximum Size | 5.9 inches (15 cm) | 3 inches (7.5 cm) | 3 inches (7.5 cm) | 4.5 inches (11 cm) |
| Temperament | Peaceful; no fin-nipping | Semi-aggressive; notorious fin-nipper | Peaceful to semi-aggressive | Peaceful; very active |
| Minimum Tank Size | 55 gallons (208 L) for adults | 20 gallons (75 L) | 20 gallons (75 L) | 55 gallons (208 L) |
| Diet | Omnivore; requires 40-50% vegetable matter | Omnivore; protein-biased | Omnivore; accepts all standard foods | Omnivore; prefers live and frozen foods |
| Plant Safety | 100% plant-safe | May nibble soft plants | Generally plant-safe | Plant-safe |
| Lifespan | Up to 15 years documented | 5-7 years typical | 4-6 years typical | 5-7 years typical |
| Schooling Requirement | Minimum 6; optimal 8-12 | Minimum 6; optimal 10+ | Minimum 6; optimal 8+ | Minimum 6; optimal 8+ |