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Ophthalmotilapia Ventralis

Ophthalmotilapia ventralis

Freshwater Lake Tanganyika, Africa

A spectacular featherfin cichlid from Lake Tanganyika. Breeding males display intense metallic blue tones and long pelvic fin extensions tipped with yellow dummy eggs. Males defend prominent flat rocks vigorously, requiring an expansive tank, multiple females per male, and exceptional water quality.

14 cm adult length, drawn to scale. deep body.

Try it in the planner Opens a tank sized to its minimum with 1 fish added.

What it needs

ItemValueBecause
Adult length 14 cm Used for the Space check: the tank must be long enough for the fish to turn round.
Smallest tank 300 L, at least 130 cm long estimated The least water and floor length this species is kept in for good, as a single fish or smallest group.
Extra water per added fish 30 L estimated What each further fish adds once the minimum is met.
Waste load Class 3 of 5 estimated How much waste an adult makes against its size. Feeds the Load check.
Temperature 24 to 27 C Stock sharing a tank need overlapping ranges.
pH 7.8 to 9 Compared with tankmates in the Water check.
Hardness GH 10 to 25, KH 10 to 20 Degrees of general and carbonate hardness.
Flow Medium Low-flow fish are stressed in a strong current.
Light Bright Matched to the lighting class on the needs sheet.
Group size Single fish is fine Not a schooling species.
Temperament Semi-aggressive Territorial: strong.
Swims in All levels Fish that use different levels share a tank more easily.
Lifespan About 8 years A fish is a long commitment.
Experience Experienced keepers only A guide to how forgiving the species is of mistakes.
Jumps Yes Keep the tank covered.

Tags marked estimated are judged from the size and habits of the species rather than measured, so treat them as a sensible default.

Diet and tank layout

Ophthalmotilapia Ventralis is an omnivore that swims in all levels of the tank. It is safe with plants. Give it plenty of cover. It digs, so anchor plants and keep hard rock off loose sand.

Tankmates

Works with

Depends

Avoid

Compare any two fish on the compatibility page, or print the equipment for a stock on the needs sheet. How this is worked out: the method.