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Areas needing attention in koi culture, bell worm-parasite-koi disease and control-brocade carp-view

Published: 2024-09-16 Author: mysheen
Last Updated: 2024/09/16, Bell worm (VORTICELLA), also known as bell worm, cup worm, tongue cup worm, is a common kind of fixed ciliates in water. The bell-shaped worm is thick and thin in front and back, cup-shaped or trumpet-shaped, about 100~400UM (UM micron unit, 1000 micron = 1 mm).

Bell worm (VORTICELLA), also known as bell worm, cup worm, tongue cup worm, is a common kind of fixed ciliates in water. The bell-shaped worm is thick and thin in front and back, cup-shaped or trumpet-shaped, about 100~400UM (UM micron unit, 1000 micron = 1 mm), with an oral disc at the front end, a groove at the lower interface, and a marginal membrane composed of villi around the oral disc, which can swing to drive the flow of water and filter organic matter such as bacteria, microorganisms and tissue debris in the water. An attachment is formed at the bottom, which is fixed on the epithelial cells of the host, and one macronucleus is inverted triangular or oval in shape, which is located in the center of the insect body.

When the worm body shrinks, the oral disc first contracts, and the oral cilia retracts, leaving only a small hole at the top, so that the contracted worm body is eggplant-shaped.

Bell worm is a kind of parasite that is easy to appear in koi culture, and its harm is also very great, which will cause more serious disease of koi, so how should we prevent and cure it? The following chapters will be described in detail.

For more questions about koi, please go to Koi Forum for advice!

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