Disease |
Primary Symptoms |
Argulus |
-
see
Fish Lice |
Anchor Worm Disease
(parasitic) |
-
presence of Lernaea or anchor worms on the skin
|
Cachexia
|
-
excessively thin body, to the point of looking 'triangular'
|
Carp Pox
(viral)
|
-
presence of solid, waxy lumps on the koi
-
generally harmless but certainly unpleasant to look at |
Chilodonella
(parasitic) |
-
heavy and labored breathing
-
rubbing of body against rocks and pond surfaces
-
skin
cloudiness due to excess mucus
|
Cloudy Eye
(bacterial) |
-
milkiness over eyes
-
loss of appetite and energy |
Columnaris Disease
(bacterial) |
-
see Cotton Wool Disease |
Costia
(parasitic) |
-
rubbing of body against rocks and pond surfaces
-
skin
cloudiness due to excess mucus
-
focal redness
-
long spells of lethargy at the
pond bottom with clamped fins
|
Cotton Wool Disease
(bacterial) |
-
white spots around the mouth and head areas that spread to the
body and fins
-
white cottony growths that eat away the mouth
-
disintegration of fins starting at the edges
|
Cotton Mouth Disease
(bacterial) |
-
see Cotton Wool Disease |
Dropsy
or
Pine-cone Disease
(bacterial) |
-
swollen abdomen
-
raised scales that exhibit a pinecone appearance
-
usually leads to death |
Finrot/Tailrot
(bacterial) |
-
begins with light, foggy patches on the skin
-
progresses to bloody, rotten tails or fins |
Fish Lice
(parasitic) |
-
presence of fish lice (argulus) on the skin that look like
dark spots at first glance; argulus is one of
the very few fish parasites visible to the naked eye
-
rubbing of body against rocks and pond surfaces |
Flexibacter Disease
(bacterial) |
-
see Cotton Wool Disease |
Flukes
(parasitic) |
-
see Gill Flukes and
Skin Flukes |
Fungus
(fungal) |
-
wooly and cotton-like attachments on the body and fins which
look green if algae-ridden
-
tissue damage follows if left untreated
|
Gill Flukes
(parasitic) |
-
presence of gill flukes on the gills and body
-
labored breathing
-
swimming in jerky motions |
Gill Rot
(fungal) |
-
breathing difficulty or gasping
at the water surface
|
Hole-in-the-Side Disease
(parasitic) |
-
see Ulcers |
Hypoxia
|
-
lethargy
-
gasping at the water surface
|
Ich
or
White Spot (parasitic) |
-
presence of small white spots all over the body and fins
-
rubbing of body against rocks and pond surfaces
|
Koi Herpes Virus (KHV) Disease
(viral)
|
-
patches of dead gill tissue similar to those caused by
columnaris disease
-
may have sunken eyes or rough skin |
Leeches (parasitic) |
-
presence of brown and gray worms up to an inch long on the
body |
Mouth Fungus Disease
(bacterial) |
-
see Cotton Wool Disease |
Skin Flukes
(parasitic) |
-
whitish or cloudy skin due to excess mucus production
-
rubbing of skin against rocks and pond surfaces
-
long periods of rest at the bottom of the pond with clamped
fins |
Spring Viremia of Carp (SVC)
(viral) |
-
lethargy and uncoordinated movement
-
bulging eyes, skin hemorrhages
-
bloated appearance due to fluids in the abdomen
-
bloody mucus trailing from vent and within the intestine |
Sunken Back Disease |
-
back of the fish looks very thin and emaciated
-
falling off of flesh on both sides of the dorsal area |
Tailrot/Finrot
(bacterial) |
-
begins with light, foggy patches on the skin
-
progresses to bloody, rotten tails or fins |
Trichodina
(parasitic) |
-
extreme irritation of the fish leading to rubbing of body
against rocks and pond surfaces
-
frayed fins; milky or opaque fins and body |
Ulcers
(bacterial) |
-
open sores on the body
-
can lead to death |