Parasitic Diseases
High Priority
Anchor Worm / Fish Lice
Visible crustacean parasites that embed in koi and goldfish skin, causing ulcerative wounds.
View Treatment Plan →
Health & Veterinary Index
Fish Diseases & Treatment Protocols
Accurate symptom identification and step-by-step hospital tank treatment guidelines for parasitic, bacterial, and fungal infections.
Bacterial Diseases
High Priority
Columnaris
A lethal gram-negative bacterial infection that mimics fungus and kills fish within 48 hours without prompt antibiotics.
View Treatment Plan →
Bacterial Diseases
High Priority
Dropsy
A critical fluid-retention syndrome causing pinecone scales from bacterial kidney infection.
View Treatment Plan →
Bacterial Diseases
High Priority
Fin Rot
A progressive bacterial infection that frays and destroys fin tissue, typically triggered by poor water quality.
View Treatment Plan →
Parasitic Diseases
High Priority
Flukes
Microscopic flatworm parasites that infest gills and skin, causing severe itching, flashing, and respiratory distress.
View Treatment Plan →
Bacterial Diseases
High Priority
Hemorrhagic Septicemia
A lethal bacterial bloodstream infection causing red streaks, hemorrhaging, and organ failure in stressed fish.
View Treatment Plan →
Parasitic Diseases
High Priority
Hexamita / Hole-in-the-Head
A parasitic infection causing facial pitting and lateral line erosion in cichlids, driven by poor water quality and nutritional deficiency.
View Treatment Plan →
Parasitic Diseases
High Priority
Ich (White Spot Disease)
A highly contagious protozoan parasite producing white salt-grain spots that can kill entire tank populations without prompt treatment.
View Treatment Plan →
Parasitic Diseases
High Priority
Internal Parasites / Worms
A parasitic infection of the digestive tract causing wasting, stringy feces, and malabsorption in aquarium fish.
View Treatment Plan →
Physical Disorders
High Priority
Swim Bladder Disease
A buoyancy disorder causing fish to float upside down, sink, or struggle to swim upright, often linked to overfeeding or genetics.
View Treatment Plan →
Fungal Diseases
High Priority
True Fungus
An opportunistic oomycete infection producing fluffy cotton-wool growths on dead or damaged fish tissue.
View Treatment Plan →
Parasitic Diseases
High Priority
Velvet (Gold Dust Disease)
A highly lethal, microscopic parasite that coats the fish in a fine, rust-colored or gold dust-like film, causing severe respiratory distress.
View Treatment Plan →