Two Spot Goby

Two Spot Goby
Latin name:
(Signigobius biocellatus)

Care Level





Orange, Tan, White



Preferred Conditions

sg 1.020-1.025, 72-78° F, dKH 8-12, pH 8.1-8.4

Avg. Max Size


Minimum Tank Size

10 gallons


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Are you looking for a unique and captivating addition to your saltwater aquarium? Look no further than the Two Spot Goby, a captivating fish species that will add a touch of elegance and intrigue to your underwater world. In this comprehensive guide, we’ll delve into the fascinating world of the Two Spot Goby, exploring its captivating characteristics, care requirements, and ideal tank setup. So, buckle up and get ready to embark on an exciting journey into the realm of this extraordinary fish.

Two Spot Goby: An Overview

The Two Spot Goby, scientifically known as Gobiusculus flavescens, is a small yet captivating fish species belonging to the Gobiidae family. These fish are native to the Mediterranean Sea and the eastern Atlantic Ocean, where they inhabit rocky shores and shallow waters. Two Spot Gobies are characterized by their distinctive appearance, featuring two prominent black spots on their dorsal fin, which give them their namesake. Their elongated bodies are adorned with vibrant colors, ranging from yellow to orange, with intricate patterns that make them a visual delight.

Habitat and Distribution

Two Spot Gobies are found in shallow waters, typically ranging from the intertidal zone to depths of around 30 meters. They prefer rocky and sandy substrates, where they can find shelter among crevices and vegetation. These fish are widely distributed throughout the Mediterranean Sea and the eastern Atlantic Ocean, including the coasts of Portugal, Spain, France, Italy, and Greece.

Physical Characteristics

Two Spot Gobies are relatively small fish, with adults typically reaching a maximum length of around 10 centimeters. Their bodies are elongated and slightly flattened, with a rounded head and a pair of large, expressive eyes. The most distinctive feature of these fish is the presence of two prominent black spots on their dorsal fin, which is often edged with a white or yellow border. Their coloration can vary depending on their habitat, but they typically display a vibrant yellow or orange hue with intricate patterns and markings.

Care Requirements for Two Spot Gobies

Providing optimal care for Two Spot Gobies is essential for their well-being and longevity in captivity. These fish have specific requirements regarding water quality, diet, and tank setup, which must be carefully met to ensure their health and happiness.

Water Parameters

Two Spot Gobies thrive in saltwater aquariums with stable water parameters. The ideal water temperature range for these fish is between 72°F and 78°F (22°C to 26°C). The pH level should be maintained between 8.1 and 8.4, and the specific gravity should be around 1.025. Regular water changes are crucial to maintain water quality and prevent the buildup of harmful substances.

Diet and Feeding

Two Spot Gobies are omnivorous feeders with a varied diet. They primarily consume small crustaceans, worms, and other invertebrates found in their natural habitat. In captivity, they can be fed a combination of live, frozen, and freeze-dried foods. It’s important to provide a varied diet to ensure they receive a balanced intake of nutrients. Feed them small amounts several times a day to prevent overfeeding and maintain water quality.

Tank Setup and Requirements

Two Spot Gobies require a well-established aquarium with a minimum tank size of 10 gallons. The tank should have a sandy or fine gravel substrate, along with plenty of live rock and hiding places. These fish appreciate a moderate water flow, so a powerhead or filter with adjustable flow is recommended. Regular maintenance, including water changes and cleaning, is essential to keep the tank environment clean and healthy for the fish.

Choosing the Right Tank Mates for Two Spot Gobies

When selecting tank mates for Two Spot Gobies, it’s important to consider their temperament and compatibility. These fish are generally peaceful and can coexist with other non-aggressive species. Suitable tank mates include:

  • Clownfish
  • Damselfish
  • Firefish
  • Blennies
  • Jawfish

Avoid keeping Two Spot Gobies with larger, aggressive fish that may prey on them. It’s also important to introduce new tank mates slowly and monitor their interactions closely to ensure harmony among the inhabitants.

Breeding Two Spot Gobies in Captivity

Breeding Two Spot Gobies in captivity is a challenging but rewarding experience. These fish are known to form monogamous pairs during the breeding season. To encourage breeding, provide a well-established aquarium with plenty of hiding places and caves. The water temperature should be slightly elevated, around 78°F (26°C), and the pH level should be maintained at around 8.2. Once a pair has formed, they will typically lay their eggs in a cave or on a flat surface. The eggs will hatch after about 10 days, and the fry should be fed live food until they are large enough to accept frozen or freeze-dried foods.

FAQs About Two Spot Gobies

  1. Q: Are Two Spot Gobies easy to care for?
    A: Two Spot Gobies are relatively easy to care for, provided their specific water parameters and diet are met. They are hardy fish that can adapt to various aquarium conditions.
  2. Q: How big of a tank do Two Spot Gobies need?
    A: Two Spot Gobies require a minimum tank size of 10 gallons, but a larger tank is recommended to provide them with ample swimming space and hiding places.
  3. Q: What are some suitable tank mates for Two Spot Gobies?
    A: Suitable tank mates for Two Spot Gobies include Clownfish, Damselfish, Firefish, Blennies, and Jawfish. Avoid keeping them with larger, aggressive fish that may prey on them.


The Two Spot Goby is a captivating and unique fish species that can add a touch of elegance and intrigue to any saltwater aquarium. With their vibrant coloration, distinctive markings, and peaceful temperament, these fish are a joy to observe. By providing them with the appropriate care and tank setup, you can ensure their well-being and longevity in captivity. Whether you’re a seasoned aquarist or just starting out, the Two Spot Goby is sure to captivate your attention and bring endless hours of enjoyment.