Bacterial or Parasite Infections

White Spot Disease

White Spot Disease

Tiny white spots, first observed on the head or pectoral fins, which will spread all over the body. Koi will often scrape the affected areas along the bottom or pond...

White Spot Disease

Tiny white spots, first observed on the head or pectoral fins, which will spread all over the body. Koi will often scrape the affected areas along the bottom or pond...

Fish Lice (Argulosis)

Fish Lice (Argulosis)

Can display violent and erratic swimming. Your koi fish will often scrape itself along the side or bottom of the pond to try and remove lice. Wiggling of pectoral and...

Fish Lice (Argulosis)

Can display violent and erratic swimming. Your koi fish will often scrape itself along the side or bottom of the pond to try and remove lice. Wiggling of pectoral and...

Chilodonellosis

Chilodonellosis

Infection around the gills leads to problems breathing. Koi may gather by water inlet to try and get more oxygen. Appetite/weight loss are often observed.

Chilodonellosis

Infection around the gills leads to problems breathing. Koi may gather by water inlet to try and get more oxygen. Appetite/weight loss are often observed.

Anchor Worm

Anchor Worm

A rod shaped parasite which can usually be seen with the naked. Use a microscope for easy diagnoses. Look for areas that are red and infected looking to see if...

Anchor Worm

A rod shaped parasite which can usually be seen with the naked. Use a microscope for easy diagnoses. Look for areas that are red and infected looking to see if...

Swim Bladder Disease

Swim Bladder Disease

Swim bladder disease, or swim bladder disorder, is characterized by a fish’s inability to regulate its buoyancy. The most obvious symptom is a fish who is unable to swim without...

Swim Bladder Disease

Swim bladder disease, or swim bladder disorder, is characterized by a fish’s inability to regulate its buoyancy. The most obvious symptom is a fish who is unable to swim without...