Amblyeleotris guttata Breeding Guide

Amblyeleotris guttata is a Western Pacific shrimp goby that shares a sand burrow with an alpheid shrimp. This guide covers pairing, the symbiotic burrow setup and the limited published data on its spawning and larval rearing.

Overview

Amblyeleotris guttata (Fowler, 1938) is a reef-associated goby of the Western Pacific, ranging from the Philippines to Tonga, north to the Ryukyu Islands and south to Australia (FishBase). It reaches about 11.0 cm standard length and inhabits patches of coarse carbonate sand on outer lagoon and seaward reefs at depths of roughly 10 to 40 m, sharing a burrow with an alpheid shrimp.

Sexing

FishBase lists no maturity or external sexing data for this species. Amblyeleotris shrimp gobies form monogamous pairs, so sex is usually inferred from a settled pairing rather than fixed markings: two compatible fish that hold one burrow together without sustained aggression are treated as a pair.

Conditioning

Conditioning relies on stable reef parameters and frequent feeding. As a carnivore, the goby takes small meaty foods such as enriched mysis, brine shrimp and finely chopped marine items roughly twice daily. A securely paired alpheid shrimp lowers stress and keeps the fish feeding near the burrow rather than hiding.

Breeding Setup

A breeding-oriented system reproduces the coarse-sand burrow biotope with several centimetres of substrate and rubble for tunnel support. Pairing with a compatible alpheid shrimp is central: the shrimp excavates and maintains the burrow while the goby acts as a lookout, the shrimp keeping almost constant antenna contact with the fish (Amblyeleotris, Wikipedia).

Spawning Behavior & Trigger

Amblyeleotris gobies form monogamous pairs and lay demersal eggs inside the burrow, which the male guards until hatching (genus account). Species-specific clutch size and exact triggers for A. guttata are not given in the cited references, so they are omitted; a stable, well-fed pair with a settled shrimp partner is the practical prerequisite.

Egg & Fry Care

The male tends the demersal eggs in the burrow until they hatch, after which the larvae are planktonic (genus account). Raising these planktonic larvae requires a separate rearing tank with appropriate very small first foods and stable conditions; a detailed protocol for A. guttata is not published in the cited sources.

Common Challenges

Successful home breeding of Amblyeleotris is rare because the delicate eggs and small planktonic larvae demand specialised care. The larval phase, not pairing or settling, is the bottleneck, and a tight lid is advisable since shrimp gobies readily jump from open tanks.