Stiphodon ornatus
Stiphodon ornatus is a rheophilic goby from fast, clear streams in Southeast Asia. Mature males show strong colour; fish graze aufwuchs and biofilm from rocks. Needs high dissolved oxygen, moderate to strong flow, and a mature tank with algae-covered stones. Shy if water quality slips or flow is weak; keep in groups for confidence.
Grazes biofilm and algae; supplement with spirulina tabs and occasional frozen cyclops; avoid protein-heavy sole diets.
Frequency: 2× daily
Mature tank with natural algae growth beats “sterile” aquascapes for long-term health.
Native Region: Southeast Asia (fast-flowing freshwater streams)
Boulder-strewn riffles with high oxygen and bright light.
Powerhead or lily pipe flow; smooth river rocks; cool end of tropical range acceptable.
Activity Level: Moderate
Schooling Size: 6+ recommended
Hops between rocks; may squabble harmlessly in good groups; lid recommended.
Difficulty: Difficult
Type: Egg layer
Sexual Dimorphism: Males more colourful and larger-headed when mature.
Pelagic larvae in nature; captive rearing requires specialist setups.
Substrate: Sand
Plant Safe: Yes
Create current lanes; avoid deep fine mud that traps waste.
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