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.
21
Sep
2019

Nitrites Are a Potent Toxin to Aquatic Fish Life

Nitrites – by Doc Johnson Ammonia is converted into Nitrite by Nitrosomonas So, when you set up…

21
Sep
2019

Indoor Koi Pond – Trouble With Nitrates

Indoor Pond Nitrates Problem – by Doc Johnson It’s hard to have enough artificial lighting to grow…

21
Sep
2019

Aeration – Oxygenation of Pond Water

Aeration – Oxygenation of Pond Water Aeration – by Doc Johnson “Warm water carries less dissolved oxygen…

21
Sep
2019

Ammonia As an Aquatic Toxin – Important

Ammonia – The Essentials Ammonia – Understand this! – by Doc Johnson Ammonia is the first waste…

21
Sep
2019

Water Changes Are Critically Important

Water Changes Are Critically Important A Word About Water Changes – by E L Johnson DVM (Here’s…

21
Sep
2019

Lymphocystis Virus in Koi and Ornamental Fish

Lymphocystis – by Doc Johnson Of all the viruses affecting Koi, the fifth most common is LYMPHOCYSTIS….

21
Sep
2019

Understanding Gravel Bottom Ponds

Understanding Gravel Bottom Ponds This has been my tenth year with a gravel-bottom pond. And, on top…

21
Sep
2019

AquaScapes gravel bottomed pond installations

AquaScapes gravel bottomed pond installations – by Doc Johnson Wildly popular and easy for landscapers to install…

21
Sep
2019

The Aquadyne Bead Filter

This is one of the filters which I [Dr. Johnson] have used extensively at my home*. I…

21
Sep
2019

Activated Charcoal – Carbon Filtration (Purification)

Activated Carbon – Charcoal Activated Carbon – Detailed information – by Carl Gittings This article was prepared…

21
Sep
2019

Intercepting Fish Disease by Frank Prince-Iles

Intercepting Fish Disease Written by Frank Prince-Iles Prevention is better and cheaper than cure! Fish disease can…