Red-eye puffer
Carinotetraodon lorteti
A small freshwater puffer among the most fascinating and challenging in fishkeeping. Intelligent and personable, with mobile red eyes that follow the observer, its compact body changes color and pattern depending on mood and sex. Males display dorsal and ventral crests during courtship. Native to Southeast Asia (Thailand, Vietnam, Cambodia), it is strictly freshwater — no salt needed. A strict carnivore requiring hard-shelled snails to maintain its beak. Highly territorial and nippy: species-only tank mandatory in nearly all cases.
Wassertemperatur
24 - 28 °C
pH-Wert
6.5 - 7.5
Wassertyp
Süßwasser
Tankfüllstand
Unten und in der Mitte
Erwachsenengröße
6 cm
Mindesttankvolumen
>= 75 L
Mindestgruppe
>= 1
GH
4 - 15 dGH
KH
2 - 7 dKH
TDS
80 - 295 ppm
Leitfähigkeit
125 - 461 uS/cm
Artbeschreibung
Geographical Origin and Habitat: Native to mainland Southeast Asia (Thailand, Cambodia, Vietnam). Lives in shaded canals, slow-flowing rivers and densely vegetated freshwater swamps.
Taxonomy and Morphology: Red-eye Puffer (Carinotetraodon lorteti). Freshwater puffer fish, reaches about 6 cm (2.4 inches). Characterized by an erectile dorsal or abdominal bony "keel" and, obviously, the ability to puff up.
Social Behavior: Extremely aggressive, unpredictable and territorial. Spends a lot of time hidden among the leaves, waiting for prey. Keeping them in groups (even among conspecifics) in small tanks is strongly discouraged.
Coloration and Sexual Dimorphism: Highly accentuated dimorphism. Males: bright red eye, red belly, greenish/brownish back with no pattern. Females: white belly, light eye, brownish body with complex reticulated "cobweb" pattern.
Pflege, Zucht und Mitbewohner
Aquarium Setup: 60-80 cm (24-32 inches) tank for a single male or a small harem (1 male and 2-3 females) full of roots and dense plants to break visual lines. The bottom must be inert sand to allow them to partially bury themselves.
Diet and Feeding: Specialized carnivore. Live snails are vital for filing the tooth beak that grows continuously. Accepts bloodworms, frozen shrimp and krill. Categorically refuses dry feeds.
Water Quality: It is a *strictly freshwater* puffer fish, it does not need salt. Intolerant of nitrate accumulations (sensitive to dirty water bacteria) and violent water changes.
Compatibility and Cohabitation: Relentless fin nipper. Must be kept alone. If paired with other fish (even armored ones like Corydoras), it will systematically remove eyes and fins during the night with pincer-like bites.
Aquarium Breeding: Difficult. The male chooses a site (often Java moss), attracts the female for a brief spawning and then violently drives her away, solitarily taking on parental care of the eggs (which he ventilates with his fins).
Risks and Diseases: In addition to hypertrophy of the beak (lethal if not worn down with snail shells), it is exposed to internal poisons. If exposed to the air, it ingests oxygen by puffing up and can no longer expel it, dying of asphyxiation. Never take it out of the water.
Geografische Herkunft und Verbreitung
Native to mainland Southeast Asia (Thailand, Cambodia, Vietnam). Lives in shaded canals, slow-flowing rivers and densely vegetated freshwater swamps.
Ursprung
Süd- und SüdostasienOstasien
Fischprofil
- Temperament
- Aggressive
- They are notoriously grumpy and aggressive. They actively predate on anything small. They possess a fierce but fascinating personality.
- Diät
- Carnivore
- Crunchy foods keep their teeth filed. Snails and small crustaceans are essential. Frozen bloodworms make good supplementary treats.
- Lebenserwartung
- 5-8 years
- Erwachsenengröße
- 6 cm
- Geschlechterverhältnis
- Harem
- Managing the sex ratio is critically important for Carinotetraodon lorteti due to the highly aggressive and territorial nature of the males. It is highly recommended to keep them either as single specimens or in a harem arrangement containing one male to several females (at least 2-3 females per male). Housing multiple males in the same aquarium almost inevitably leads to fierce, often fatal, combat as they mature and assert dominance. Even within a proper harem structure, providing abundant visual barriers and hiding spots is essential to diffuse any intraspecific tension.
- Fütterungsfrequenz
- Twice daily
- Once a day is generally sufficient. Avoid letting their bellies bulge excessively. Skipping a day mimics natural habits.
- Bioload
- Low to Medium
- They create a surprisingly high bioload. Messy eating habits foul water quickly. Excellent biological filtration is strictly required.
- Fluss
- Strong
- They inhabit sluggish, calm natural waters. Slow to moderate flow is preferred. Strong currents cause them massive stress.
- Sprungrisiko
- No
- Reproduktion
- Oviparous
- Captive breeding is extremely difficult to achieve. Males become fiercely territorial during spawning. Eggs are scattered without parental care.
- Kompatibilität & Tankkameraden
- Community
- They are fiercely aggressive fin-nippers. Species-only tanks are highly recommended. Tank mates are usually severely injured.
- Tankfüllstand
- Middle/Bottom
- Redeye puffers are predominantly bottom-to-middle dwelling fish that intricately associate themselves with the hardscape and flora of the aquarium. They can often be seen hovering just above the substrate or navigating methodically through dense thickets of aquatic plants. They rarely venture into the open upper levels of the water column unless actively pursuing food or moving to a new territory. Providing a complex environment in the lower half of the tank with driftwood, leaf litter, and caves is crucial for their behavioral enrichment.
Wissenschaftliche Modelle & Parameter
FishBase
Zugang zu den offiziellen wissenschaftlichen Daten der Art
FishBase v25.04Daten synchronisiert am: 15.06.2026
- Trophäenniveau
- 3,5 ± 0,46 se
- Belastbarkeit
- Hoch (weniger als 15 Monate)
- Phylogenetische Einzigartigkeit (PD50)
- 0.5156
- Bayessche Längen-Gewichts-Beziehung
- a = 0.0263, b = 2.88
- AnfälligkeitGeringe Anfälligkeit (10 / 100)
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