All fish / Pseudomugilidae

Transparent blue-eye

Pseudomugil pellucidus

Also known as transparent blue eye, pellucid blue-eye, pellucidus blue eye, clear blue-eye, ペルキダス, 透明蓝眼灯

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A tiny, largely see-through blue-eye with a bright blue upper eye ring and yellowish tints on the fins of males. It is kept for its delicate looks and lively surface schooling in planted nano tanks.

Care at a glance

Care level

Moderate

Temperament

Peaceful

Adult size

3 cm

Temperature

24 to 29 °C

pH

6.5 to 7.8

Smallest tank

40 litres

Keep as

Group of 8 or more, more females than males

Diet

Omnivore: small live and frozen foods such as daphnia, cyclops and baby brine shrimp, plus fine flake

Swims

Top of the tank

Lifespan

1 to 2 years

Water

Freshwater

Wild range

Northern New Guinea and nearby islands (Indonesia: Papua, Waigeo)

Breeding

Pairs scatter a few eggs daily over fine-leaved plants or spawning mops over several weeks. Eggs can be collected and hatched separately, and the fry need very fine live foods; breeding is fairly easy but output is low.

Good to know

Very small and short-lived, so keep only with tiny peaceful tankmates and avoid fin nippers. Wild-caught stock is sometimes confused with other small Pseudomugil species.