Common name: Redmargin shrimpgoby

General information

The Red-Margin Shrimp Goby, scientifically known as Amblyeleotris rubrimarginata, is a small, colorful fish that is popular among aquarists for its interesting behavior and compatibility with reef aquariums. This species is known for its symbiotic relationship with pistol shrimps, which adds a dynamic aspect to its care in captivity.

Care

Red-Margin Shrimp Gobies are relatively easy to care for but do require a well-structured sand bed and live rock to thrive. They are peaceful fish that should be kept with non-aggressive tank mates. A diet of meaty foods such as brine shrimp, mysis shrimp, and finely chopped seafood is recommended to maintain their health and coloration.

Reproduction

In the aquarium, breeding Red-Margin Shrimp Gobies can be a rewarding experience. They are cave spawners, laying their eggs in burrows where the male will guard them. Breeding success in captivity is moderate, with proper tank conditions and a well-established pair.

Symbiosis

One of the most fascinating aspects of the Red-Margin Shrimp Goby is its symbiotic relationship with alpheid shrimps, commonly known as pistol shrimps. The shrimp maintains a burrow in the sand which both the shrimp and goby use as a home. The goby acts as a lookout for predators while the shrimp works on the burrow. This mutualistic relationship is both entertaining and beneficial for the health of the aquarium ecosystem.

Habitat

Amblyeleotris rubrimarginata is found in the Western Pacific, from Indonesia to the Solomon Islands, and typically inhabits sandy areas near reefs. In the wild, they are often seen in shallow waters, sharing burrows with pistol shrimps.