KOI Disorders and Treatment
Disorder
Possible Treatment
Flashing,
Scratching, Jumping
Your Koi are affected by parasites in the pond.  Use
Praziquantel, Supaverm, Pro-Form C or Potassium
Permangnate.  Make sure to run the medication through
your filter during the entire treatment, except Potassium
Permanganate.
Red sores, Hole in
the side
disease.Red sores,
Hole in the side
disease.
This is a gram-negative Bacterial infection caused by
Aeromonas.  Mix up a medicated food with Oxolinic Acid
Powder.  Use 2 teaspoons of medication per pound of
feed.   Feed it to the Koi for up to 2 weeks.  Also use
Pro-Form C in the water.
Red streaking in
Fins & body.
This is a gram-negative Bacterial infection called
Hemorrhagic Septicemia.  This is very common in Koi and
Goldfish.  Large ulcers, caused by Aeromonas bacteria will
appear in severe cases.  Use Oxytetracycline
Hydrochloride Powder in the feed.  Use 2 teaspoons of
medication per pound of feed.  Feed it to the Koi for up to
2 weeks.
White cottony
puffs grow on Skin
and turn into sores.
This is a Saprolegnia Fungus that is common in Koi and
Goldfish.  Separate the affected fish if possible to medicate
them.  If you cannot separate the fish, treat the entire pond
with Pro Form C for 5-7 days.
Fish gasp for air
and do not eat.  
Fins are frayed and
the water is cloudy.
You have an Ammonia problem in the pond.  Start doing
partial water changes immediately and test the water for
Nitrites and Ammonia.  Use Sodium Thiosulfate to
de-chlorinate your water and add Aqua Gold to establish
the nitrifying Bacteria in the pond.
Fish gasp for air
and hang just
beneath the
waterfall.
Sounds like Gill Flukes.  To make sure, look at one of the
fish's Gills.  If it is brown/green in color, this could be
Bacterial Gill Rot, and needs to be treated with
Benzalkonium Chloride.  If the Gills appear to look almost
normal, or slightly reddish, this is probably Flukes and
needs to be treated with Praziquantel -or-De-Los.
Excessive slime
covers entire fish.
Make sure your water is not Over-Salted.  This makes the
fish produce more slime coat.  If this is not the case, they
could have a protozoan infection and the Koi need to be
treated with Metronidazole or Quinine Sulfate.
One or both Eyes
are popped out.
This is called pop eye, and is caused by a Kidney
Infection.  Treat the Koi with Erythromycin for 10 days.  
This could also be the start of Abdominal Dropsy.
Fins are eaten
away and covered
with a white
coating.
This is a gram-negative Bacterial infection called
Columnaris and should be treated with a sulfa drug
combination.  Try:  Triple Sulfa -or- TMP Sulfa -or- Sulfa
4 TMP.  Treat the Koi for a minimum of 10 days.
Fins are red and
eaten away.
This could be a couple of different diseases.  It could be a
gram-negative Bacteria, or a parasitic infestation.  Fin and
tail rot is the most common.  Try treating the Koi with
TMP Sulfa -or- Neomycin Sulfate.
   


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