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Parasitic 🟡 Moderate

Fish Louse (Argulus)

🦠 Argulus foliaceus

📋 Overview

Argulus fish lice are visible with the naked eye (5-10mm) and clearly disc-shaped. They cause skin irritation and transmit secondary infections. Dimilin (diflubenzuron) is the standard pond treatment.

📊 Key Facts

Causative Agent
Argulus foliaceus
Primary Host
Goldfish, koi, freshwater fish
Treatment
✗ None
Vaccine
✗ None / Experimental

💊 Treatment

⚠️ No universally approved treatment is currently available. The information below covers supportive care and experimental approaches.
Dimilin, physical removal, potassium permanganate baths.