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.

2 conditions

Clear all filters

Freshwater Tropical

Branchiomycosis (Gill Rot)

Fungus (true fungus) disease of aquarium fish. Key signs: rapid breathing, gasping at surface, gill necrosis with white/marbled…

Severe

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