Reference work entry
This genus with a series of different species belongs to the group of so-called dinospores. The specimens possess one or two flagella (Figs. 1 and 2) and reach a length of 8–10 μm. They attach at the skin of fish and grow up to 40 μm sized greenish cysts, wherein the free-living dinospores are formed during repeated binary fissions. The cysts introduce inflammations, which also may become filled with bacteria. Since most tropical fish are kept in warm water, the dinospores may reproduce quickly and even may kill infected fish, which appear with spongious-appearing covers at the skin. Treatment can be done with Protazol (Fa. Sera, Heinsberg, Germany). Prophylaxis may be done by a repeated change of water in aquaria.
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