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Care & Husbandry

Sterilizing The Tank

“I’m going to break down, and sterilize the tank, gravel and plants.” It’s promised often and it’s USUALLY unnecessary. Sterilization of Environments is suggested as “The Way” to prevent diseases. This is widely advocated...

The Two Gallon Fish Bowl: Cool, or Cruel?

Cruel or Cool? The Fish Bowl The two-gallon fish bowl is ubiquitous in our society and has seen the residence of literally billions of Koi, goldfish and pond fish. I would estimate that almost...

Phosphate Removers Are A Waste of Money

You should be aware that in the normal scheme of things, phosphates cause algae to flourish. As such, phosphates became ‘the enemy’ to marketing weasels who would have you believe that algae are the...

What’s Wrong With My Koi Fish?

What Is In Each Video? Table of Contents: Twenty Koi Health Video Tutorial Handling Stress -Have the fish been handled recently? Why that matters. Winter Stress -Temperature. Is it winter? Summer? Why that matters...

Goldfish Care and Success for the Beginner

Many Goldfish keepers are unaware that the highly selected Asian “carps” are very well suited for warmer waters. Ranchus, Orandas, Bubble eyes, etc all do better in heated systems, e.g. 74-78 degrees at a...

How To Winterize Your Koi and Pond Fish

Winter in the mountains of Niigata are cold. Some Wintertime Koi Management Considerations Winterizing Koi and Wintertime Koi Care – by Doc Johnson This is the time of year that we consider our Koi as...

Bil Wight’s Paste Food for Koi and Pond Fish 

Some ingredients, like the seaweed flour, can be difficult to obtain, but if you persist, you can get lucky. when I bought the flour for the first time, because the animal feeds dealer had...

Levamisole for Camallanus Intestinal Worms in Koi and Fish

Levamisole can be added to the diet at 0.1% of the amount and fed for 7 days for removal of nematodes. Tramisol Levamisol for Worms in Koi Levamisole (Tramisol) – by Doc Johnson As...

How To Care For a Brand New Fish Straight From The Pet Store or Pond Shop

This post concerns ‘How To Care For a Brand New Fish Straight From The Pet Store or Pond Shop’ and represents a simple, one page download that will ensure your success when you buy...

Waterchanges in Koi ponds, changing water in watergardens

Abstract: Changing water all the time, continuously, is easier than dump type water changes. It’s better for the fish because the water quality remains constant. Constantly good. Chlorine and Chloramine are not a problem...

“Koi Health & Disease” Reload by Dr Erik Johnson

Folks ask me all the time, what’s new in the new book? If I already have the first edition, should I buy the second edition? The answer to the question is YES. The reason...