Koi Diseases

National Fish Pharmaceuticals, Fish Medications - Fish Disease Treatments And Complete Healthcare for Aquarium & Koi Pond Owners Since 1971 Fish Disease Diagnosis & Fish Disease Treatments.  Koi Disease Information, Pond Medications And Flow Charts To Cure Your Fish!
**If your pond water temperatures are 65°F or lower, the antibiotic treatments will not work.  Most treatments will produce little or poor results at low temperatures.  The only way the treatments would work in this situation, is to purchase a pond heater, or remove the fish and treat it in an isolation tank or pond.  You can buy a pond heater for a 3,000 gallon pond for around $600

Koi Pond Medications.  Got Sores?  Get your Koi Fix Today!

New!  One step treatment against Aeromonas bacteria and Pseudomonas bacteria.  Used for all pond fish.

Koi Fix for food.  Just mix into the Koi pellets.  Helps heal sores caused by a bacterial infection.

Koi Fix for water.  If your fish have stopped eating due to illness, this is the medication for you.  Also protects against fungal disorders.

*Effective against secondary bacterial infections associated with Koi Herpes Virus (K.H.V.).

So you've tried the salt treatments, injections, the tea tree liquid, ointments and pre-made medicated feed, and your fish are still sick? Stop wasting your money on products that don't work!  Koi Fix™ is a special blend of antibiotics that have been laboratory and field tested to heal up those sores.  Koi Fix™ will heal your fish!

Think your fish have K.H.V.?  We have a cure!  K.H.V. pictures and treatment information

A few words about treating Koi and Goldfish in a pond environment...

Koi & goldfish treatments do not work in cold water!  Cold water = 65°F or lower.  It is best to have a way to isolate and treat the fish away from the pond. The bacteria and other pathogens that attack your Koi and Goldfish love the cooler water.  To speed the healing process, it is best to heat them up!  80° to 82°F works very well.   The only reason to heat the fish up any higher, is if they have contacted a viral infection.  KHV, SVC and Dropsy can be cured with heat only. 86°F+ for a one week heat treatment is required to kill a virus.

EASE UP ON THE SALT!  Are you having an Ammonia or Nitrite problem in your pond?  A very high salt level such as 0.03% in your main pond will destroy your beneficial bacteria.  Salt is very antiseptic and kills bacteria.  Even your good bacteria!  You should never ever do this.  High salt levels are meant for a bath in a hospital tank or as a dip.  A normal salt level for your main pond should be 0.01% or lower.

Notice something about our product section on this site?  We do not carry injectables.  Why?  they are not needed.  People do more damage sticking needles into their fish than our medications could possibly do.  Adding an antibiotic to the Koi or Goldfish feed is much safer and it really works.  Fish are low in vascularity so the injections do not work the same for a fish as they do for dogs, cats and humans.  F.Y.I.

And last but not least: Never ever remove your Koi or Golfish from the pond and wrestle it around trying to put antibiotic ointment on it or a Betadine/Iodine type product.  These things will wash off of the fish anyway and are for a temporary sterilization only (surgery).  You will do more harm to the fish by stressing it out this way.  An example of this would be if you had a cut on your hand, applied these products and then went swimming.

Open sores on your fish?  This is one of two things, either Aeromonas bacteria, or Pseudomonas bacteria.  How can you tell the difference?  You can't.  These two pathogens create open sores on the fish that look identical in appearance.  If you cannot make a slide from a scraping on the fish, then you will have to treat them with one or two different antibiotics.  Aeromonas bacteria is the most widespread during spring and summer.  We suggest using Oxytetracycline hydrochloride for this treatment.  If you use this antibiotic for 7 days and no improvement is seen, try switching them over to Neomycin.  Neomycin sulfate and Kanamycin sulfate are used to treat Pseudomonas bacteria.

Open sores go away and come back again?  If this is the case, it sounds like your fish has come into contact with a virus, either SVC or KHV.  The reason that the sores are coming back is, the antibiotics are working in a bacterial-static manner.  Meaning that, they are working for the secondary infections on the fish, but not on the virus.  You must isolate these fish if possible and heat them up to 86°F - 88°F for one week.  Slowly cool them down to around 80°F and treat any secondary infections they may have at this point.


Common Koi Disorders

Koi Health Treatments

Flashing, Scratching, Jumping Your Koi are affected by parasites in the pond.  Use De-Los.  Make sure to run the medication through your filter during the entire treatment.
Red sores, Hole in the side disease. This is a gram-negative Bacterial infection caused by either Aeromonas or Pseudomonas bacteria.  Mix up a medicated food with Koi Fix For Food  Use 2 tablespoons of medication per pound of feed.   Feed it to the Koi for 2 weeks.  Also use Forma-Green in the water. 

If the fish have stopped eating, Use Koi Fix For Water, and do not use Forma-Green, or any other water treatments with this treatment.

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 Forma-Green 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. If the Gills appear to look almost normal, or slightly reddish, this is probably Flukes and needs to be treated with 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 if both of the eyes are popped out.
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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