Disease library

Fish disease library

Every disease, parasite, and infection in our knowledge base. Tap the keywords to narrow the list — the page updates with a clean, shareable URL.

5 conditions

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Koi & Pond

Koi Herpes Virus (KHV)

Notifiable viral disease devastating koi populations worldwide. Mortality 80–100%. No cure — only management and prevention.

Critical

Freshwater Tropical

Saprolegnia (Cotton Mold)

Oomycete disease of aquarium fish. Key signs: cotton-wool-like white or grey patches on skin, fins or eggs, often…

Moderate

Freshwater Tropical

Bacterial Kidney Disease (BKD)

Bacterium disease of aquarium fish. Key signs: chronic, progressive: granulomatous lesions in kidney (creamy white nodules), spleen, and…

Moderate