Disease & Treatment
73 articles- Koi Herpesvirus Disease: symptoms, treatment, preventionKoi Herpesvirus (CyHV-3) is a devastating herpesvirus of common carp and koi that causes mortality above 90 % at 18-28 °C and has no cure.
- Lymphocystis (Cauliflower Disease): symptoms, treatment, preventionLymphocystis is a self-limiting DNA virus that produces cauliflower-like nodular growths on fins and skin and rarely causes mortality.
- Mouth Rot: symptoms, treatment, preventionMouth Rot is a localised oral form of Columnaris caused by Flavobacterium columnare; it progresses rapidly in bettas and gouramis and can be
- Popeye (Exophthalmia): symptoms, treatment, preventionPopeye (exophthalmia) is a protrusion of one or both eyes caused by fluid build-up, usually following trauma or bacterial septicemia.
- Dropsy: symptoms, treatment, preventionDropsy is a symptom complex of fluid accumulation in the body cavity caused by systemic bacterial infection or organ failure; pineconing sca
- Bacterial Fin Rot: symptoms, treatment, preventionBacterial Fin Rot is a common opportunistic infection of fin margins by mixed Gram-negative bacteria, usually secondary to injury or poor wa
- Marine Vibriosis: symptoms, treatment, preventionVibrio anguillarum and related Vibrio species are major Gram-negative pathogens of marine fish causing hemorrhagic septicemia and ulcerative
- Fish Tuberculosis: symptoms, treatment, preventionMycobacterium marinum and related species cause a chronic systemic acid-fast bacterial infection in fish that is also zoonotic to humans.
- Aeromonad Septicemia: symptoms, treatment, preventionAeromonas hydrophila is an opportunistic Gram-negative bacterium ubiquitous in freshwater that causes hemorrhagic septicemia in stressed or
- Fish Lice (Argulus): symptoms, treatment, preventionArgulus spp. are disc-shaped crustacean parasites up to about 10 mm long, visible to the naked eye, that attach via suckers and pierce fish
- Anchor Worm: symptoms, treatment, preventionLernaea cyprinacea is a parasitic copepod whose adult female embeds head-first into fish flesh, leaving a Y-shaped body protruding from the
- Gill Flukes (Dactylogyrus): symptoms, treatment, preventionDactylogyrus spp. are egg-laying monogenean flukes attaching to gill filaments; eggs survive multiple drug doses and require repeated cycles
- Skin Flukes (Gyrodactylus): symptoms, treatment, preventionGyrodactylus spp. are live-bearing monogenean flukes that attach to skin and fins via a hooked posterior haptor and multiply rapidly on stre
- Brooklynella (Clownfish Disease): symptoms, treatment, preventionBrooklynella hostilis is an aggressive marine ciliate parasite that causes severe slime sloughing and gill damage, especially in clownfish a
- Trichodiniasis: symptoms, treatment, preventionTrichodina spp. are disc-shaped ciliate parasites with a characteristic ring of denticles that thrive on stressed fish and in poor water qua
- Chilodonelliasis: symptoms, treatment, preventionChilodonella piscicola is a heart-shaped ciliate parasite of skin and gills, typically active in cool water below 20 °C.
- Freshwater Velvet (Oodinium): symptoms, treatment, preventionPiscinoodinium pillulare is a photosynthetic dinoflagellate parasite of freshwater fish producing a fine gold or rust dust on skin and gills
- Marine Velvet (Amyloodinium): symptoms, treatment, preventionAmyloodinium ocellatum is a highly virulent dinoflagellate parasite of marine fish that primarily attacks the gills and causes rapid mortali
- Marine Ich (Cryptocaryon): symptoms, treatment, preventionCryptocaryon irritans is an obligate ciliate parasite of marine fish producing white spots on skin, fins and gills. Untreated outbreaks are
- Ammonia Poisoning in AquariumsAmmonia poisoning is an environmental toxicity from unionized NH3 in an incomplete nitrogen cycle, damaging gills and brain. Toxicity rises
- Saprolegnia (Water Mold) Treatment GuideSaprolegnia is an oomycete (water mold, not a true fungus) causing cottony tufts on injured fish and eggs; almost always secondary to stress
- Columnaris (Flavobacterium columnare) Treatment GuideColumnaris is caused by the Gram-negative filamentous bacterium Flavobacterium columnare, often misidentified as fungus. Mortality can be hi
- Ich (Ichthyophthirius multifiliis) Treatment GuideIch is caused by the ciliated protozoan Ichthyophthirius multifiliis; without treatment mortality can approach 100%. Only the free-swimming