Court jester goby
Koumansetta rainfordi
FishSaltwater
- Care level
- Moderate
- Temperament
- Peaceful
- Reef safe
- Yes
- Recommended tank
- 150 L
- Maximum size
- 8 cm
- Temperature
- 24–27 °C
- pH
- 8–8.4
- Diet
- Omnivore
Care at a glance
The court jester goby is white with orange lengthwise stripes and green dots, and has a tapering head with which it constantly works over the rock. Unlike most gobies it feeds mainly on growth: it picks hair algae and detritus off rock and sand all day.
That is exactly what makes it risky in a new or over-clean tank: without growth it finds nothing and loses weight unnoticed. Put it in a mature reef tank with plenty of grown-in rock, supplement with algae-based flakes and keep it with calm, not too fast tankmates.
Good to know
Related species
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Values are mainstream hobbyist guidance, not gospel — always watch what your own animals need.