Largescale Four-eyed Fish

Anableps anableps

Largescale Four-eyed Fish (Anableps anableps) — Varies care, Peaceful, under Other. Minimum tank in the app: 70 US gal min; aim for 77–88°F and pH 6.5–7.5. The Largescale Four-eyed Fish is ideal for experienced aquarists seeking an engaging species that thrives in larger tanks.

Largescale Four-eyed Fish (Anableps anableps) in a planted freshwater aquarium
Care levelVaries
TemperamentPeaceful
Min tank size70 US gal min
pH range6.5–7.5
Temperature77–88°F
Max size11.8 in (30.0 cm)
Captive lifespan5–10 years
SchoolingNo

Captive lifespan reflects typical experience in a home aquarium, not maximum recorded age; genetics, sourcing, and care vary.

Natural distribution

South America

  • South America

Regional colours match the stocking calculator’s origin map.

Largescale Four-eyed Fish Tank Setup

Aim for a spacious layout with plenty of open swimming areas complemented by structured elements like rocks or driftwood to create visual barriers. A sandy or fine substrate is preferable, and moderate to high water flow can simulate their natural habitat. Good filtration is crucial due to their higher bioload.

What Do Largescale Four-eyed Fishs Eat?

While they are omnivores and will accept a variety of foods, they can be competitive eaters, particularly in mixed-species tanks. Offering a balanced diet with high-quality pellets, live or frozen foods can enhance their coloration and health.

Largescale Four-eyed Fish Tank Mates

Ideal companions are similarly-sized mid-water fish that can handle a semi-aggressive temperament, such as larger tetras or barbs. Avoid smaller, timid species that may become targets, and be cautious with fast-moving tank mates that could provoke stress. Intraspecies interactions are generally non-aggressive unless space is limited.

Are Largescale Four-eyed Fishs Good for Beginners?

Care demand varies with setup and individual fish; use the numbers above as your baseline. Aquarists often underestimate the need for space and filtration, leading to poor water quality and stress. Overcrowding or insufficient tank size can provoke aggression and territorial disputes, while neglecting water parameters can result in health issues.

Building a community? Run the full list through the stocking calculator before you add anything else.

Log tests and reminders in App-aquatic—free, same data you see here.