blue slime disease
1) costiasis (an infection of the skin, fins and gills of aquarium and hatchery fish by the flagellate protozoan Costia sp. (or Ichthyobodo; and also Chilodonella, Trichodina). Found in young fish just as they start feeding externally, in colder waters. Stress may be a factor. Fish may show lethargy, appetite loss, flashing, respiratory distress in the form of gill flaring and gasping, fin erosion, and produce abundant mucus, giving a cloudy appearance, hence the names blue slime disease or skin slime disease. The skin and scales may peel away in strips in acute cases)
2) a skin condition associated with a lack of biotin (q.v.) in the diet

Dictionary of ichthyology. 2009.

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  • skin slime disease — costiasis (an infection of the skin, fins and gills of aquarium and hatchery fish by the flagellate protozoan Costia sp. (or Ichthyobodo; and also Chilodonella, Trichodina). Found in young fish just as they start feeding externally, in colder… …   Dictionary of ichthyology

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  • costiasis — an infection of the skin, fins and gills of aquarium and hatchery fish by the flagellate protozoan Costia necatrix (or Ichthyobodo; and also Chilodonella, Trichodina). Found in young fish just as they start feeding externally, in colder waters.… …   Dictionary of ichthyology

  • biotin — a B complex vitamin, a deficiency of which in fishes causes convulsions, reduced mucus production and blue slime disease …   Dictionary of ichthyology

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