Investigating Color Change and Hiding Behavior in an Aging Orfe

Color Change in Orfe

Orfe normally stay golden/orange. Some individual variation occurs, but a shift to "redder gold" is unusual. It can be a natural age-related change or diet-related (carotenoids).

The Hiding Behavior Is the Real Clue

An orfe hanging in shallow marginals with its head out of water signals distress. Possible causes:

• Post-spawning exhaustion: Spawning 10 days ago fits. Females especially need recovery time.
• Low Oxygen: Orfe are highly oxygen-sensitive. Ensure strong aeration (waterfall, air pump).
• Water Quality: Test ammonia, nitrite, pH, KH.
• Disease/Parasites: Check for flashing, lesions, gill issues.

Action Plan

1. Maximize aeration immediately.
2. Test water parameters.
3. Add pond salt (0.1%) and MelaFix as supportive care.
4. Consult a fish vet or local koi club if no improvement in a few days.

Your 9,000-liter pond with breeding orfe is impressive—protect that investment!