Bathing effects of nifurpirinol on the intramuscular infection with Aeromonas liquefaciens in goldfish, carp and metynnis and on artificially injured skin and fins in metynnis were investigated. On the aeromonas infection nifurpirinol was effective by bathing at 1 ppm for 510 minutes or at 0.025ppm for seven consecutive days. After injuring the mortality of the fish treated with nifurpirinol by bathing at 0.05 ppm for twenty consecutive days was less than that of untreated control.
Bathing effect of nifurpirinol on Ichthyophthiriasis in goldfish, pangasius, kissing gourami, blue gourami, clown loach, black molly and guppy was investigated. By short time bathing(510 minutes)nifurpirinol was effective at 12ppm. By the bathing for seven consecutive days the drug was also effective at concentrations of 0.050.2ppm. White spots in the treated fish disappeared on 7 days after treatment.