Author: Dr. Erik Johnson

Dr Erik Johnson is a Marietta, Georgia Veterinarian with a practice in small animal medicine. He graduated from University of Georgia with his Doctorate in 1991. Dr Johnson is the author of several texts on Koi and Pond Fish Health and Disease as well as numerous articles on dog and cat health topics.
22
Oct
2019

NuFlor Florfenicol Antibiotic Injection

Schering’s “NuFlor” injectable has been used in Europe on Salmonid fishes for a while now. I was…

22
Oct
2019

Flipover Disease in Deep Bodied Goldfish

Flipover Disease in Deep Bodied Goldfish Greetings and welcome to my discussion of a surgery to control…

22
Oct
2019

Blackening Koi or Goldfish Skin Melanophore Migration

Orange Goldfish Develops Black Patches “I bought a fish two weeks ago, and a few days after…

21
Oct
2019

Dropsy in Koi & Goldfish

“Dropsy” is the condition in which the body is diffusely infected with bacteria and the scales generally…

21
Oct
2019

Symptom of Blood Coming From a Kois Gills After Handling

Bleeding from the gills is not uncommon in the springtime and is almost always ONLY seen in…

21
Oct
2019

Symptom: Koi Cannot Close It’s Mouth

“About 3 months ago we noticed that one of our Koi, a large beautiful pale pink with…

21
Oct
2019

Popeye / Exophthalmia in Koi

It was 5 inches and had a small mark on its side which I considered a possible…

21
Oct
2019

Can Cats Catch Lyme’s Disease?

Theoretically, yes. In a laboratory? That’s the only place actual Lyme’s disease has been documented in felines….

21
Oct
2019

Possible Skin Cancer in Koi – by Dr. Erik Johnson

“I have this wonderful fish with a big open wound on her. The wound has been there…

21
Oct
2019

Changes in Stool Quality in Koi Goldfish and Pondfish

The Koi, goldfish and pond fish stool normally appears brown and friable [crumbly] Deviations from this quality…

21
Oct
2019

Broken Back or Scoliosis in Koi and Pond Fish

The three most common causes are: Being carried in a net Being flown overseas resulting in hyperinflation…