Author: Dr. Erik Johnson
Costia Costia or Ichthyobodo necatrix, is a ciliated protozoan parasite of freshwater fish that also has the capability…
Freshwater Ich (Ichthyophthirius multifilis) is a ciliated protozoan that encysts under the epidermis of the fish; and,…
If you can help people with their ponds, either fixing them or installing them, please get on…
A discussion of the major worms and their control Worms in Koi In the past, the discussion…
Argulus – Fish Lice look like little (4mm) greenish or yellow “flying saucers” and are easily visible…
Often, the best combination of treatments I have found for Snuffles is short or long acting cortisone,…
Abstract: Changing water all the time, continuously, is easier than dump type water changes. It’s better for…
Chilodonella infections, rapid mortalities from this freshwater parasite of Koi, pondfish and aquarium fish. Cleared with salt…
What’s here is a video about necropsy in koi, the Necropsy in Koi Basic Steps and Handling…
Flukes, also known as Trematodes are the most common almost ubiquitous parasite of Koi. And while Koi…
Ichthyophthirius “Ick” or “Ich” in Koi, Pond Fish and Aquaria also known as white spot, seen under…
















