Infections of ornamental fish may be shown though symptoms like white-yellowish velvet-like coatings, cotton wool-like coatings, ulcers, wounds and inflammations.

Further signs are bloody spots, loss of skin and scales, raised scales, fin rot, clouded mucous membrane, white mouths, staggering, popeye ("Exophthalmus"), swollen abdomen ("dropsy").

Especially in cases of an unsecure diagnosis medimor has a powerful effectiveness against most infections. It is well-tolerated and suitable for ornamental fish in marine and fresh water.