Court Jester Goby

Court Jester Goby

Also known as the Rainford's Goby, the Court Jester Goby is a peaceful and hardworking reef fish prized for its unique striped coloration and constant grazing behavior. This small goby spends much of its day picking at algae, detritus, and microorganisms throughout the aquarium, making it both an attractive and functional addition to mature reef systems.

🟢 Quarantined (Minimum 2 Weeks) – Fully Conditioned & Eating

Quick Facts

• Care Level: Moderate
• Temperament: Peaceful
• Reef Compatibility: Reef Safe
• Minimum Tank Size: 20 gallons
• Size: Ranging from approximately 2–3 inches at adult size

Behavior & Husbandry

Court Jester Gobies are calm, active foragers that spend their day grazing across rockwork, sand, and aquarium surfaces. Their constant searching behavior makes them fascinating to watch and highly beneficial in established reef systems.

They thrive in mature aquariums with abundant live rock, natural algae growth, and stable water conditions. Due to their peaceful nature, they do best with non-aggressive tankmates that won't outcompete them for food.

Providing a mature reef environment with plenty of grazing opportunities will greatly improve long-term success.

Feeding & Diet

Omnivorous with strong herbivorous grazing tendencies.

What We Feed at Lush Corals:

• Algae-based foods
• Frozen mysis shrimp
• Enriched brine shrimp
• Small pellet foods

In Your Aquarium:

• Nori
• Herbivore pellets
• Frozen foods
• Natural algae and biofilm growth

While they actively graze throughout the aquarium, supplemental feeding is important to maintain body weight and overall health.

Compatibility Notes

Compatible with:

• Clownfish
• Gobies
• Blennies
• Wrasses
• Other peaceful reef fish

Excellent addition to reef aquariums looking for natural algae and detritus grazing behavior.

Avoid aggressive tankmates that may intimidate them or outcompete them during feeding.

Lush Corals Quarantine & Conditioning Process

This fish has completed our full quarantine and conditioning protocol (minimum 2 weeks) prior to being made available.

During this process, each fish is:

• Carefully observed and stabilized
• Proactively treated and monitored
• Conditioned onto prepared foods
• Verified to be actively eating and thriving

This extended process significantly reduces stress and increases long-term success, ensuring you receive a fish that is healthy, stable, and truly ready for your reef.

We don’t rush fish to market—every quarantined fish we offer has been given the time it needs to succeed in your aquarium.