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.
15
Oct
2019

Baytril / Enrofloxacin Dosing Injectable in Koi and Pond Fish

You can use Enrofloxacin up to three days apart against bacteria susceptible to its effects. Baytril: (Enrofloxacin)…

15
Oct
2019

Fish Surgery by Dr. Erik Johnson

During the natural expansion of veterinary medicine into the world of Koi – it was inevitable that…

15
Oct
2019

Undergravel Filtration For Tropical Fish Tanks and Goldfish Tanks

Undergravel filtration directly impacts the health of fish in many important ways. Unfortunately, in the interest of…

15
Oct
2019

Fish Health For Retailers – How To Cut Losses on Fish Livestock

INTRODUCTION In the preparation of this topic, I am putting forth the most common causes of retail…

15
Oct
2019

A Favorite Species: The Oscar, Astronotus ocellatus

Name: Astronotus ocellaris Introduction: This fish is the grandaddy of the big cichlids. It was only after the…

15
Oct
2019

First Aid For Tropical Fish

Your “obvious” case of Ich may not be so obvious. 70% of all fish health problems are…

15
Oct
2019

TREMATODE PARASITES/FLUKES

Flukes are the NUMBER ONE cause of Ulcer Disease in Koi and Goldfish. They are the principle…

15
Oct
2019

Chilodonella Symptoms and Treatment

Chilodonella is one of the hottest fish killers there is. It’s a ciliated protozoan parasite. Under the…

15
Oct
2019

Copper Use in Marine Systems

Seachem Cuprimine is the superior copper treatment. To treat most parasites in Marine systems, consider copper a…

15
Oct
2019

How To Buy Healthy Fish And Avoid Sick Ones

This article pertains MOSTLY to koi and pond fish. But most of the recommendations hold for goldfish…

15
Oct
2019

Siamese Fighting Fish, Bettas and Their Care

For ages people have been asking me about Bettas, or Siamese Fighting Fish. And I have not…