Overview
The Court Jester Goby (Koumansetta rainfordi) is a intermediate saltwater species known for its green-brown, horizontal color stripes coloration. Colorful horizontal stripes. Bottom.
Origin & Appearance
Origin: Western Pacific.
Colors: Green-Brown, Horizontal color stripes.
Body Shape: Fusiform (torpedo/streamlined). Typical adult dimensions: 7.0 x 1.3 x 2.1.
Sexual Dimorphism: Minimal.
Tank & Water Requirements
| Min Tank Size | 20 gallons |
| Temperature | 75–79°F |
| pH Range | 8.1–8.4 |
| Water Hardness (GH) | dKH 8-12 |
| Bioload | low |
| Oxygen Demand | low |
| Plant Safe | yes |
| Aquarium Position | Bottom |
Behavior & Activity
Bottom percher on rubble and rock; hops between spots; picks at surfaces for food; calm quiet movement
Speed: 30/100Aggression: 2/10diurnal
Breeding
Moderate; egg depositor in burrow
Common Diseases
💊 Ich
Expert Notes
Colorful horizontal stripes