Koi and Goldfish Health

Visit our Knowledge Base to read FAQ and answers regarding koi and goldfish diseases and koi and goldfish disease remedies

MinnFinn is one of the only safe medications that is non-toxic, environmentally friendly, and works with as little as a single treatment for MOST koi diseases and goldfish diseases stemming from bacterial infections, fungal infections, and parasites.

 

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If koi and goldfish are sick, test the pond water as poor water quality is responsible for most pond problems.

Potassium Permanganate can be deadly to koi and goldfish if not applied properly or if applied for incorrect diagnoses. It can also damage beneficial bacteria in biological pond filters.


 

MedFinn-medicated-koi-and-goldfish-foodPond Salt and medicated koi and goldfish food, or koi and goldfish food with antibiotics, are the safest and most effective means of curing koi and goldfish diseases, sicknesses, and health problems. Romet TC is an excellent broad spectrum antibiotic that cures most koi and goldfish wounds, diseases, fungal infections, and bacterial infections. Medicated koi and goldfish food is ingested and therefore is more effective than koi and goldfish medications that are added to the pond water.

 

Koi and goldfish that have succumb to disease or have health problems can be easily cured provided the problem has been caught in time and provided that we can identify the problem. There are several diseases and health problems common to koi and goldfish. Most koi and goldfish diseases result from poor water quality or improper pond care.


 

 MinnFinn Cures MOST Koi and Goldfish Disease with a SINGLE Treatment

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Common Koi and Goldfish Diseases and Ailments/ Koi and goldfish disease remedies

Koi with red Spots/ ulcers; goldfish with red spots/ ulcers

Causes: ammonia and/or nitrite problem

Solution: Test pond pH, ammonia in pond, and nitrite in pond. Ensure pond filter is adequate; stop or decrease fish feeding for a couple weeks. Apply a pond detoxifier (ammonia and nitrite remover) to provide instant relief and at the same time, apply a beneficial bacteria to consume ammonia and nitrite. Ensure pH is balanced as high pond pH being exponentially increases affects to koi and goldfish. When ammonia is high, it can drive the pH down to unsafe low levels.


 

Lesions/ holes in body

Causes: ammonia and/or nitrite problem

Solution: Ensure pond filter is adequate; stop or decrease fish feeding for a couple weeks. Apply an ammonia and nitrite remover to provide instant relief and at the same time, apply a seeding beneficial bacteria to consume ammonia and nitrite. Ensure pH is balanced as pH being high can exponentially increase effects to koi and goldfish. When ammonia is high, it can drive the pH down to unsafe low levels.

Cause: Predation

Solution: install decoys and/or cover the pond with pond netting or install a pond protector.

Cause:  Parasites

Solution: Apply a koi and goldfish medication that takes care of parasites.


 

Flashing; Koi Swimming along pond bottom, then turning sideways and swimming straight up; irregular koi movements; koi jumping out of the water; koi “darting”

When koi flash, often referred to as flashing, they are telling you something is wrong and often look like they are trying to remove something from their body. Koi are intelligent animals and have an instinct to remove themselves from harmful situations caused by bad pond water. This is why koi jump frequently. They are attempting to leave the bad pond water. Koi can and will randomly jump. Random jumping and flashing are not anything to be concerned with. Habitual flashing and jumping is a clear indication of a pond water problem.

Causes: poor pond water quality; high ammonia, nitrite, and/or pond pH high; anchor worms, fish lice, or other possible koi or goldfish parasite

Solution: Test koi pond water. Apply a pond detoxifier and beneficial bacteria. Inspect koi and goldfish for parasites. If parasites are found, treat with Microbe Lift Parazoryne or Medfinn.


 

 

Pop-eye or koi with bulging eyes; goldfish with bulging eyes

Causes: ammonia and/or nitrite problem

Solution: Ensure pond filter is adequate; stop or decrease fish feeding for a couple weeks. Apply an ammonia and nitrite remover to provide instant relief and at the same time, apply a seeding beneficial bacteria to consume ammonia and nitrite. Ensure pH is balanced as pH being high can exponentially increase effects to koi and goldfish. When ammonia is high, it can drive the pH down to unsafe low levels.

Cause: improper acclimation process

Solution: add pond salt and apply Koi TLC to reduce koi and goldfish stress

Cause: foreign chemical in pond water

Solution: conduct a partial water change; be sure to use dechlorinator and something to encourage slime production as well as something to reduce stress. There is one product that serves all three of these purposes: Koi TLC.


Swollen koi/ swollen goldfish; bloat; pine cone disease (dropsy)

Dropsy is a result of an infection that occurred or caused internal organ swelling.

Causes: bad water quality, improper feeding, or natural causes

Solution: there are a couple of products on the market to cure dropsy: Microbe Lift Sabbactisun and MinnFinn. Both a very safe and Microbe Lift is an effective herbal remedy that is concentrated and easy to apply. MinnFinn typically only takes one treatment whereas Microbe Lift takes 10 treatments.


Goldfish and koi with fin and tail rot; parts of the koi or goldfish rotted away

Causes: natural causes (koi and goldfish get sick in a similar fashion to humans); poor water quality, and/or stress.

Solution: Pond Salt, Medicated Fish Food, and/or Microbe Lift Sabbactisun or MinnFinn.


 

White growth, green growth, or brown growth on koi and goldfish

Causes: Fungal infection resulting from fish stress, poor water quality, and/or natural causes

Solution: Pond Salt, Microbe Lift Sabbactisun, or Pond Salt and MinnFinn.


 

Excessive slime production on koi and goldfish

Causes: Fungal infection resulting from fish stress, poor water quality, and/or natural causes

Solution: Pond Salt, Microbe Lift Sabbactisun, or Pond Salt and MinnFinn


 

White cottony growth on koi and goldfish

Causes: this is called ich, and typically results from stress resulting from poor water quality.

Solution: Microbe Lift Ich Out; MinnFinn


 

Blood in fins and/or tail of koi and goldfish

Causes: fungal infection, and typically results from stress resulting from poor water quality.

Solution: MinnFinn


 

Koi and goldfish dying and have no markings

Causes: bacteria infection resulting from natural causes and/or stress from poor water quality or instability

Solution: Wipe Out Bacteria Control or MinnFinn


 

Koi and goldfish not being able to swim below water surface

Causes: swim bladder problem

Solutions: Microbe Lift Sabbactisun; Wipe Out Bacteria Control; MinnFinn


 

Koi and goldfish hovering by waterfall

Causes: foreign chemicals in the pond water, too much algae control, not enough dechlorinator used during a water change; insufficient oxygen levels due to over population; gill flukes or gill maggots

Solutions: partial water changes (using dechlorinator or tap water conditioner), install aeration system and/or aeration monitor; Treat pond with praziquantel (if the problem is from gill flukes or gill maggots); MinnFinn will work well in this instance, too.


Koi and goldfish in group not swimming

Causes: koi and goldfish spooked from predator and/or water quality problem

Solution: install decoy and/or pond net; solve water quality problem


 

Koi and goldfish will not eat

Causes: poor water quality; predation

Solution: test pond water; install decoy and/or pond netting


 

Fish Lice

Causes: adding pond fish and/or pond plants from unreliable source; stress from poor water quality

Solution: Microbe Lift Sabbactisun; Praziquantel; MinnFinn


 

Gill Maggots/ Gill Flukes

Causes: adding pond fish and/or pond plants from unreliable source; stress from poor water quality

Solution: Microbe Lift Sabbactisun; Praziquantel; MinnFinn