Court Jester Goby | Koumansetta rainfordi

The Court Jester Goby (Koumansetta rainfordi), also known as the Old Glory or Rainfordi Goby, is a small, peaceful reef fish known for its colorful red & yellow patterns.

Care Level: Easy
Maximum Size: 2.5–3 inches
Minimum Tank Size: 5-10 gallons
Temperament: Peaceful / Shy
Reef Safe: Yes
Diet: Carnivore
Temperature: 72–79°F
Specific Gravity: 1.020–1.026
pH: 8.0–8.4

Provide plenty of live rock, caves, and shaded hiding areas to help this naturally cryptic goby feel secure. Court Jester Gobies should be kept with peaceful tankmates and offered small meaty foods such as mysis shrimp, enriched brine shrimp, finely chopped seafood, and other appropriately sized frozen foods. Their small adult size and peaceful nature make them an excellent choice for established nano and reef aquariums.