Mini Dart Goby

Aioliops megastigma

(0 Reviews)

Mini Dart Goby

Mini Dart Goby

Aioliops megastigma

(0 Reviews)

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Mini Dart Goby Care Facts

Care Level: Moderate
Temperament: Peaceful
Diet: Carnivore
Origin: Indo-Pacific Ocean
Acclimation Time: 2+ hours
Reef Safe: Yes
Minimum Tank Size: 20 gallons
Max Size: 4 inches

The Mini Dart Goby (Aioliops megastigma) is a peaceful, small and colorful fish found among the reefs of the Indo-Pacific. They have a bright yellow face with a translucent-blue body and a red posterior. They do well in nano reef tanks with plenty of hiding spaces, and should be housed with fish of similar size and temperament. A tight lid is recommended, for as is true for most slender gobies, the Mini Dart Goby is very good at jumping through small openings. They can be kept singly or in a small school and should be fed carnivorous preparations daily, such as mysis, bits of krill or live brine. 

The Mini Dart Goby (Aioliops megastigma) in Saltwater Aquariums

The Mini Dart Goby (Aioliops megastigma), known by various common names such as Megastigma Goby, Dartfish, and Mini Firefish, is a fascinating addition to saltwater marine aquariums. This petite species is renowned for its vibrant colors, unique behaviors, and adaptability, making it an ideal choice for novice and experienced hobbyists.

Habitat of the Mini Dart Goby

Originating from the Indo-Pacific region, the Mini Dart Goby is commonly found in coral-rich areas with sandy substrates. It seeks refuge in crevices and caves among the coral rubble, displaying a preference for well-established reef environments.

Reef Safe and Compatibility with Mini Dart Goby

This species is considered reef-safe and compatible with various corals and invertebrates commonly found in saltwater aquariums. Its peaceful nature ensures it won't harm corals or other tank inhabitants.

Size and Lifespan of the Mini Dart Goby

Mini Dart Gobies are relatively small, reaching an adult size of about 2 inches (5 cm). They can live up to 5 years in captivity with proper care, providing enthusiasts with years of enjoyment.

Diet of Mini Dart Goby in Captivity

These gobies are omnivores and thrive on a varied diet. In captivity, they readily accept high-quality flake food, frozen foods, and live brine shrimp. Offering a diverse menu ensures optimal health and coloration.

Aquaculture and Availability of Mini Dart Goby

Mini Dart Gobies are currently aquacultured, contributing to their availability in the hobby. This sustainable practice ensures healthy specimens for enthusiasts and reduces the impact on wild populations.

Compatibility with Other Fish and Invertebrates for Mini Dart Goby

Known for their peaceful demeanor, Mini Dart Gobies are compatible with a range of tank mates. Avoid housing them with aggressive or larger species that may intimidate or outcompete them. Ideal tank mates include other small and non-aggressive fish, such as Clownfish, Firefish, and Cardinalfish.

Sexual Dimorphism of Mini Dart Goby

Mini Dart Gobies do not exhibit significant sexual dimorphism, making it challenging to distinguish between males and females visually. However, their behavior may offer subtle clues during breeding periods.

Juvenile to Adult Coloration Changes in Mini Dart Goby

Juvenile Mini Dart Gobies display a muted coloration, gradually intensifying as they mature. The vibrant hues and distinctive patterns that develop in adulthood make them a captivating centerpiece in any aquarium.

Temperament of Mini Dart Goby

These gobies are known for their calm and non-aggressive temperament. They spend much of their time exploring the lower levels of the tank and seeking shelter within rock formations.

Tank Requirements for Mini Dart Goby

To ensure the well-being of Mini Dart Gobies, a minimum aquarium size of 20 gallons is recommended. Provide a sandy burrowing substrate and live rock structures to mimic their natural habitat. Adequate hiding spots and gentle water flow contribute to their sense of security.

Water Conditions for Mini Dart Goby

  • pH: Maintain a range of 8.1 to 8.4
  • Salinity: Keep levels between 1.024 to 1.026
  • Temperature: Maintain between 75°F to 82°F
  • Water Flow: Moderate

Other Common Names for Mini Dart Goby

  • Megastigma Goby
  • Dartfish
  • Mini Firefish

Five Compatible Tank Mates for Mini Dart Goby

Why Purchase from is committed to providing aquarium enthusiasts with the highest quality marine life. When you purchase the Mini Dart Goby from, you can expect:

  • Healthy and Aquacultured Specimens: Our Mini Dart Gobies are sourced from reputable aquaculture facilities, ensuring their health and reducing the impact on wild populations.
  • Expert Guidance: Benefit from our team's extensive knowledge and experience with expert advice on the care and maintenance of your Mini Dart Goby.
  • Diverse Selection: offers diverse marine species and products, allowing you to create a thriving and dynamic saltwater aquarium.

In conclusion, the Mini Dart Goby is an excellent choice for marine aquarium enthusiasts, bringing color, character, and compatibility to your tank. With proper care and attention to their specific requirements, these gobies can thrive and become a captivating focal point in your saltwater aquarium. Purchase your Mini Dart Goby from for a reliable source of healthy and aquacultured specimens backed by expert guidance and a commitment to sustainable practices.

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