Link's Goby (Amblygobius Linki) saltwater aquarium fish

Overview:

Link’s Goby is best kept in a mature, peaceful marine aquarium with stable parameters and plenty of hiding places. Despite its small size, it does best in a tank with a sand bed, scattered live rock, and low to moderate water flow that allows it to perch, graze, and retreat when stressed. Provide excellent water quality, as gobies are sensitive to sudden swings in salinity, temperature, and nutrient levels. A tightly covered aquarium is important, since this species can jump when startled. Ideal conditions include consistent temperature, stable specific gravity, and a calm environment with minimal aggression. Because Link’s Goby is a small, bottom-oriented species, avoid bare or overly bright setups; a natural layout with crevices and resting points helps reduce stress and encourages normal behavior.

Diet and Feeding:

Link’s Goby should be offered small, frequent meals of meaty marine foods. In captivity, it typically accepts finely chopped mysis shrimp, enriched brine shrimp, copepods, and other small frozen or live invertebrate foods. Some individuals may also learn to take quality micro-pellets or small marine flakes, but a varied natural diet is preferred. Feed 2–3 times daily in modest portions, making sure food reaches the bottom or is delivered near its preferred area. Because gobies have small mouths and short feeding windows, competitors can easily outcompete them, so target feeding may be necessary. Soak foods in vitamin and HUFA supplements to support immune function, coloration, and long-term health. Avoid overfeeding, as excess food quickly degrades water quality and can contribute to digestive issues and algae growth.

Compatibility:

Link’s Goby is generally compatible with other peaceful, non-aggressive reef and fish-only tankmates. Good companions include small wrasses, blennies, cardinalfish, clownfish with mild temperaments, and other non-territorial species that occupy different levels of the aquarium. It may also coexist with many invertebrates in a reef setting if the other animals are non-predatory. Avoid housing it with large predatory fish, highly territorial species, or boisterous feeders that may intimidate it or prevent it from eating. Since gobies spend much of their time near the substrate, tankmates that constantly patrol the bottom can cause chronic stress. If kept with shrimp or other small crustaceans, monitor interactions carefully, as individual behavior can vary.

Health and Quarantine:

Quarantine is strongly recommended for all new arrivals for at least 2–4 weeks. This helps identify external parasites, bacterial infections, or appetite loss before introduction to the main display. During quarantine, provide stable salinity, gentle filtration, hiding places, and carefully prepared foods. Common concerns include stress-related starvation, fin damage from harassment, and parasitic outbreaks such as marine ich or velvet. Daily observation is important, especially for feeding response and respiration. Preventive care centers on pristine water quality, a varied diet, and low-stress handling; gobies do poorly when moved frequently or exposed to abrupt changes. If the fish stops eating, breathes rapidly, or isolates itself for extended periods, act quickly, as small fish can decline fast.

algae spirulina mysis shrimp brine shrimp
Link’s Goby is a calm, bottom-oriented fish that spends most of its time hovering low over the substrate, darting between rockwork and sandy areas, and it appreciates a tank with plenty of hiding spots and open bottom space. It is generally peaceful, though conspecifics may show mild territoriality unless kept in a spacious aquarium with clear visual barriers and multiple retreats. A minimum tank size of 30 gallons is recommended, with a layout that includes stable rockwork, sand, and broken lines of sight to reduce stress and territorial disputes. In community settings it is typically compatible with reef-safe species and other nonaggressive tank mates, but it is best housed with companions that will not outcompete it at feeding time or harass it near its chosen burrow. This goby is an omnivore with a strong benthic feeding habit, grazing on microalgae, detritus, and tiny invertebrates while also accepting prepared foods. Regular small feedings of finely chopped frozen and pellet foods help support its natural foraging behavior and overall condition.

FAQ

Frequently Asked Questions

About the Link's Goby

  • Is Link’s Goby truly reef-safe, and will it bother corals, clam mantles, or ornamental shrimp?
    Yes—properly kept Link’s Goby is considered reef-safe. It does not nip corals, clam mantles, or healthy ornamental shrimp. Its main behavior to watch is perch-and-hunt activity around rockwork and sand, where it may take very small crustaceans or tiny worms from the microfauna population. In a mature reef, that is usually not a problem, but in a very small, newly set-up tank it can reduce copepod availability faster than expected.
  • What tank setup helps Link’s Goby feel secure and display its natural behavior?
    It does best in a tank with lots of live rock, shaded crevices, and calm perching spots where it can “hover” and dart back to cover. A fine sand bed is ideal if your specimen is a sand-sifter or bottom-oriented individual, but even in rock-dominant systems it wants broken sight lines and low-stress flow. Avoid bare, brightly lit tanks with nowhere to retreat; they often stay hidden and may refuse food there.
  • What is the ideal diet for Link’s Goby in captivity, and how do you get a picky new specimen eating?
    The best diet is tiny meaty foods: enriched mysis chopped to size, baby brine shrimp, copepods, finely minced seafood, and high-quality micro pellets if accepted. Newly imported individuals often start with live or moving foods first, especially enriched baby brine or live copepods. Once eating, transition to frozen foods by feeding small portions several times per day. Because their mouths are small, oversized frozen pieces are a common reason new fish “look hungry” but fail to thrive.
  • Can Link’s Goby be kept with pistol shrimp, and if so, what pairing or tank conditions matter most?
    If your Link’s Goby species is one of the burrow-associating types, it can form a classic goby-shrimp symbiosis with a compatible pistol shrimp. Success depends on having a mature sand bed deep enough for burrowing, stable rockwork so collapses don’t crush the pair, and a peaceful tank without aggressive burrow competitors. Not every individual will pair immediately, and some never do; forcing the issue usually fails. Provide multiple burrow start points and let the shrimp establish the home first.
  • Why do Link’s Gobies sometimes vanish for days after introduction, and when should I worry?
    This is normal early behavior. They are shy, territory-bound, and often spend long periods tucked into rockwork or burrow entrances while acclimating. In the first 1–3 weeks, many only appear at feeding time or after lights dim. Worry if it never emerges to feed after several days, is breathing heavily, or shows pinched body condition. The biggest causes of loss are not predation by tankmates, but stress, starvation, and poor acclimation to a tank with too much current or too little hiding structure.