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Koivet.com | Fish Health | Dr. Erik Johnson

Fish Medicines Symptoms and Treatments

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KHV video  |  

Category: Lesions / Symptoms

Goldfish Cap or Wen Pimples
April 22, 2019April 22, 2019 DrErikJohnson

A male goldfish can be identified by tiny white pimples popping up on the cheeks and the leading edge of the pectoral fins. But what..

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Lesions / Symptoms
Scoliosis Or Bent Back In Koi and Goldfish
November 15, 2018April 22, 2019 DrErikJohnson

Scoliosis is caused by a variety of causes, none of which is infectious. 1) The most common cause of scoliosis is Vitamin C deficiency. But..

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Lesions / Symptoms / Physical Disease Conditions
This is a wound from a plecostomus with a koi in a too-small container.
How to Manage Fresh Wounds in Fish Skin
February 1, 2018 DrErikJohnson

Wound Management Since wounds are NOT caused by a disease process and usually you can tell a wound from an ulcer, I'd encourage you to consider no..

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Lesions / Symptoms / Physical Threats
Fish that stay at the surface may be having trouble breathing.
Gasping Fish: What to Do About Fish That Can’t Breathe
January 29, 2018 DrErikJohnson

My fish are gasping...? This is a sign of respiratory problems. The most common cause is some form of gill disease, but internal disorders such..

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Fish Help Questions / Lesions / Symptoms
Fin Rot in Koi and Goldfish
Finrot: My Fish Has Ragged Fins: What Is Finrot?
January 29, 2018 DrErikJohnson

Fin rot is nearly always a sign of stress and the most important step is to try and determine why the fish is stressed and..

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Fish Help Questions / Lesions / Symptoms
Koi Patters and Colors Can Move, Change, Fade and Deepen
Color Changes: Why Does My Fish Change Color?
January 29, 2018 DrErikJohnson

A fairly common situation arises when fish literally change colour, either all over or just parts of the body.  The most common situation is when..

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Fish Help Questions / Lesions / Symptoms
Flipover: What to do About Flipover Swimbladder Disease
January 29, 2018January 29, 2018 DrErikJohnson

My fish is upside-down/ can't swim [caption id="attachment_423" align="alignleft" width="233"] Flipover Goldfish Before Surgery[/caption] This is a common problem whereby fish lose their equilibrium and..

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Fish Help Questions / Lesions / Symptoms
Blackening of a goldfish kin
Black Patches on Goldfish: Koi and Fish Blackening
January 28, 2018January 29, 2018 DrErikJohnson

Blackening Koi or Goldfish Skin Written by Dr Erik Johnson Melanophore Migration [caption id="attachment_353" align="alignleft" width="300"] Melanophore migration is the ingrowth of black / melanin..

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Lesions / Symptoms
Koi bleeding from gills
Koi Bleeding From Gills After Handling
January 28, 2018 DrErikJohnson

Bleeding Gills After Handling  [caption id="attachment_350" align="alignleft" width="233"] Koi, especially if not only, females, may pump a small amount of blood from under the gill..

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Lesions / Symptoms
Koi With Its Mouth Stuck Open
Koi That Can’t Close Its Mouth
January 28, 2018January 28, 2018 DrErikJohnson

"About 3 months ago we noticed that one of our Koi, a large beautiful pale pink with black markings, seemed to have trouble shutting her..

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Lesions / Symptoms

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