Common name: Trimma Goby

Scientific name: Trimmatom offucius Winterbottom & Emery, 1981
Pygmy gobyBigeye dwarf gobies, Trimma macrophthalma, Bali Indonesia.
okinawa pygmygoby gobyRed-spotted dwarfgoby, trimma rubromaculatus, Palau, Micronesia

General information

The Trimma Goby, scientifically known as Trimmatom offucius, is a tiny and fascinating species of goby that is well-suited for nano and pico reef aquariums due to its diminutive size. These gobies are known for their vibrant colors and peaceful demeanor, making them a popular choice among aquarists who appreciate their ability to coexist with a wide variety of tank mates.

Details

Recommended minimum volume
40 liter (11 gallons)
Salinity
S.G. 1.023 to 1.025
Temperature
24 to 28 °C (75 to 82 °F)
Acidity
pH 8.1 to 8.4
Average size
3 cm (1¼″)
Care level
Easy Prefers live rock with hiding spots.
Diet
Carnivore Enjoys small live foods.
Social
Solo Can be territorial in small tanks.
Reefsafe
Yes
Aggression
Peaceful
Captive bred
Yes Rarely bred in home aquariums.
Conservation status
ExtinctThreatenedLeastConcern

Taxonomy

  1. Kingdom
    Animals
    Animalia
  2. Phylum
    Chordates
    Chordata
  3. Class
    Ray-finned Fishes
    Actinopterygii
  4. Order
    Perch-like Fishes
    Perciformes
  5. Family
    Goby
    Gobiidae
  6. Genus
    Trimma Goby
    Trimmatom
  7. Species
    Trimma Goby
    Trimmatom offucius Winterbottom & Emery, 1981

Care

Trimma Gobies are relatively easy to care for, but their small size means they can be outcompeted for food in larger aquariums. They thrive in well-established tanks with plenty of live rock for hiding and foraging. A varied diet of small, meaty foods such as copepods, brine shrimp, and finely chopped seafood is essential for their well-being.

Reproduction

In the aquarium, Trimma Gobies may spawn if they are kept in a peaceful environment with plenty of hiding spaces. The males guard the eggs, which are typically laid in a cave or on the ceiling of an overhang. Breeding these gobies in captivity can be a rewarding experience for dedicated hobbyists.

Habitat

Trimma Gobies are found in the Western Pacific, where they inhabit coral reefs and rubble slopes. They are often observed hovering close to the substrate or perched on coral branches, darting back to safety when threatened. These gobies prefer areas with moderate to strong currents and are usually found at depths ranging from 5 to 40 meters.