Lipstick Leporinus
Leporinus arcus
A massive, powerful Amazonian colossus (up to 40 cm / 15+ inches) famous for its bright, fire-red 'lipstick' mouth. An unrelenting herbivore and ferocious fin-nipper that requires enormous tanks, bulletproof lids, and monster-fish tankmates.
Temperatura da água
22 - 28 °C
Valor de pH
6 - 7.5
Tipo de água
Água doce
Nível do tanque
Parte inferior e intermediária
Tamanho adulto
40 cm
Volume mínimo do tanque
>= 500 L
Grupo mínimo
8
GH
2 - 15 dGH
KH
1 - 7 dKH
TDS
40 - 295 ppm
Condutividade
63 - 461 uS/cm
Descrição da espécie
Geographical Origin and Habitat: Major river systems of the Orinoco (Venezuela, Colombia) and Guianese rivers. Inhabits main river channels, rocky flooded zones, and areas with strong flow, grazing heavily on algae-covered rocks and submerged fruits.
Taxonomy and Morphology: An absolute giant within the Anostomidae family, reaching 35-40 cm (14-16 inches) in captivity. Built like a muscular torpedo for immense swimming power. Features the iconic 'hare-mouth' equipped with sharp, shearing incisor teeth designed to cut vegetation and crush seeds.
Social Behavior: An indefatigable, restless, and dominant swimmer. Constantly patrols the tank, investigating and biting objects. Like the Banded Leporinus, it is a notorious and vicious fin-nipper, easily shredding the fins of slower tankmates. Highly aggressive and intolerant toward its own kind in confined spaces.
Coloration and Sexual Dimorphism: Subtle but featuring a striking focal point. The body is a metallic olive/gold. Three prominent, large black blotches (or a dashed line) run along the lateral mid-section. Its namesake feature is its mouth: the lips and entire front snout are stained a brilliant, glowing FIRE RED (the 'lipstick'). Unpaired fins are also flushed with intense red/orange.
Cuidado, criação e companheiros de tanque
Aquarium Setup: Exclusively for Jumbo Tanks (MINIMUM 180-200 cm / 6-7 feet length, 200+ gallons). Will eat literally any live plant down to the roots. Scape the tank like a major riverbed: massive smooth boulders, giant driftwood, and sand. IMPORTANT: Driftwood and rocks must be heavy and secure, as a 40-cm Leporinus will violently ram and move light decor looking for food. A HEAVY, INDUSTRIAL-STRENGTH LID is mandatory to contain its massive jumping power.
Diet and Feeding: Voracious Herbivore with omnivorous tendencies. 70-80% of the diet MUST be vegetable matter to prevent fatal bloat. Feed thick slabs of zucchini, broccoli stalks, whole romaine lettuce, and jumbo pond-algae pellets daily. Supplement sparingly with large earthworms or whole shrimp. To tear food, they bite and perform violent 'death-rolls' (like a crocodile).
Water Quality: Extremely hardy. Adapts well to pH 6.0-7.5 and medium hardness. Temp 23-28°C (73-82°F). Given the massive volume of vegetable waste they excrete, industrial filtration and powerful wavemakers (for strong current) are strictly required.
Compatibility and Cohabitation: A strictly 'Monster Fish' species. Will swallow small fish and mercilessly mutilate slow/long-finned fish. House ONLY with large, heavily armored or aggressive tankmates that can stand their ground: Oscars, Pike Cichlids (Crenicichla), massive Geophagus, Arowanas, and jumbo Plecos. Never keep 2 or 3 together: keep either ONE solitary specimen or a massive school (8+) to disperse their lethal internal aggression.
Aquarium Breeding: Impossible in home aquaria.
Risks and Diseases: 1. SEVERE MUTILATION of tankmates' fins. 2. Physical destruction of tank decor, including biting through soft filter tubing/heaters. 3. Shattering lids or jumping out. 4. Fatal intestinal blockages if fed a carnivore (high-protein) diet.
Origem e distribuição geográfica
Major river systems of the Orinoco (Venezuela, Colombia) and Guianese rivers. Inhabits main river channels, rocky flooded zones, and areas with strong flow, grazing heavily on algae-covered rocks and submerged fruits.
Origem
Amazônia, Orinoco e Guianas
Perfil de peixe
- Temperamento
- Semi-aggressive
- They are active and sometimes boisterous. Aggression is mostly directed at conspecifics. A large group helps reduce targeted bullying.
- Dieta
- Omnivore
- Leporinus arcus is an omnivore favoring plant matter. Feed them spirulina pellets and fresh vegetables. They will also eat small meaty foods.
- Expectativa de vida
- 5-10 years
- Tamanho adulto
- 40 cm
- Proporção sexual
- Group
- A specific sex ratio is not critical. Keep them in groups to disperse aggression. Sexing young individuals is very difficult.
- Frequência de alimentação
- Twice daily
- Feed them twice a day. Offer small portions to prevent water fouling. They have a very healthy appetite.
- Carga biológica
- High
- Leporinus arcus is a large and active fish. It produces a substantial amount of waste. Strong filtration is absolutely required.
- Fluxo
- Stagnant
- They appreciate a moderate to strong water flow. Good circulation mimics their native rivers. Adequate surface agitation is also important.
- Risco de salto
- Yes
- The jump risk is incredibly high. They are powerful jumpers when startled. A heavy, tight-fitting lid is mandatory.
- Reprodução
- Oviparous
- Breeding in captivity is exceedingly rare. They do not exhibit any parental care. Commercial breeding uses hormone injections.
- Compatibilidade e companheiros de tanque
- With caution
- This species can be a fin-nipper. Keep them with robust, fast-moving fish. Do not keep them with slow species.
- Nível do tanque
- Middle/Bottom
- Leporinus arcus swims primarily in the middle levels. They need a lot of open swimming space. A long aquarium is highly recommended.
Modelos e parâmetros científicos
FishBase
Acesso aos dados científicos oficiais da espécie
FishBase v25.04Dados sincronizados em: 15/06/2026
- Nível trófico
- 2,3 ± 0,1 se
- Resiliência
- Média (1,4 - 4,4 anos)
- Unicidade filogenética (PD50)
- 0.5
- Relação bayesiana comprimento-peso
- a = 0.01023, b = 3.04
- VulnerabilidadeVulnerabilidade de baixa a moderada (30 / 100)

















































