Eviota albolineata Breeding Guide

Eviota albolineata is a Pacific-island dwarfgoby under 3 cm long with no documented aquarium reproduction. This guide outlines its biology and why captive breeding remains unproven.

Overview

Eviota albolineata is a dwarfgoby of the family Gobiidae recorded from the Society Islands, Line Islands and Tuamotu Archipelago in the Pacific; many records elsewhere are considered misidentifications of the related Eviota guttata. Adults reach only about 19 to 26 mm in length. Like other members of the genus, it is a short-lived reef goby.

Sexing

No species-specific external sexing key has been published for Eviota albolineata. Sex determination across small Eviota gobies generally relies on examination of the genital papilla rather than colour, which is not practical in a display aquarium.

Breeding Setup

There is no published captive-breeding protocol for this species. Keeping it requires a mature reef microhabitat reflecting its natural shallow-reef range. Any reproduction effort would depend on a copepod-rich system to sustain both adults and any fry, but no documented method exists.

Common Challenges

The lack of reproductive records is the central obstacle. Combined with a very small adult size and the demersal egg-laying typical of dwarf gobies, locating eggs and rearing pelagic larvae through their planktonic phase would be a research-level undertaking with no established feeding regime.