Freshwater Tropical
Hole-in-the-Head Disease (Hexamita)
Parasite (flagellated protozoan) disease of aquarium fish. Key signs: pinhole-sized pits on head that enlarge into cavities; lesions…
Moderate
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.
Freshwater Tropical
Parasite (flagellated protozoan) disease of aquarium fish. Key signs: pinhole-sized pits on head that enlarge into cavities; lesions…
Moderate
Brackish Water
Parasite (dinoflagellate) disease of aquarium fish. Key signs: dusty gold-brown coating on skin and gills, rapid respiration, gasping…
Moderate
Freshwater Tropical
Parasite (dinoflagellate) disease of aquarium fish. Key signs: fine yellow to gold dusty coating on skin (gives 'velvety'…
Moderate
Marine / Saltwater
Parasite (ciliate protozoan) disease of aquarium fish. Key signs: white spots (larger and more diffuse than freshwater ich),…
Moderate