Trichodina

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Koi Information

Koi Diseases and Parasites

Koi Feeding Guide

Trichodina

Trichodina is one of the easiest protozoan parasites to detect under the microscope as it is almost perfectly round with hundreds of hooks which resemble cilia found its periphery and it constantly rotates as it moves through the mucus, causing tissues damage.

It attacks both skin and gill tissues of our Koi, and can often cause more damage to gills than realized.

Classed as a warm water parasite, it can survive for some time without a host. It causes vegetation of the skin giving rise to a grey white opaque appearance on the body of infected Koi which exhibit the classic symptoms of flashing, rubbing and lethargy.

A magnification of 100 to 200 x is required to view this parasite.

Recommended treatments are Potassium Permanganate.

Koi & Pond Tip of the Day

February 5th, 2012

Ponds with vinyl liners or of fiber glass construction tend to show a decrease in alkalinity over time and may need supplements to maintain an acceptable level. Raise alkalinity by adding Calcium Carbonate, concrete blocks, oyster shells, limestone, or even egg shells.

Tips by » Koi Clubs USA