Marine velvet is the deadliest common saltwater fish disease. Caused by the dinoflagellate parasite Amyloodinium ocellat...
Flukes are flatworm parasites that attach to fish gills (gill flukes) or body surface (skin/body flukes). Common on wild...
Fin rot is a bacterial infection that attacks fin edges, producing ragged, frayed, or receding fins. Almost always cause...
AEFW are species-specific flatworms that eat Acropora tissue. They blend with the coral perfectly when not moving. Sympt...
Red bugs are tiny crustacean parasites (1mm) that infest Acropora colonies. Visible as small yellow-orange specks on the...
Columnaris is a deadly bacterial infection that hits stressed freshwater fish. Often called "cotton wool disease" due to...
Existing pages: Ich, Brooklynella, plus the new pages above.