The objective of this work was to test the efficiency of conventional treatments to control ich infection in "jundiá" (Rhamdia quelen) fingerlings. Twenty fish (3-6 cm) were placed in 28 aquaria (10 L) for 192 hours, and submitted to the following treatments: control, formalin (0.2 mL L-1), potassium permanganate (1.3 mg L-1), copper sulfate (0.63 mg L-1), common salt (10 g L-1), malachite green (0.05 mg L-1) and temperature elevation (32°C). Copper sulfate, common salt and the elevation of temperature reduced the number of parasites in "jundiá". These treatments can substitute malachite green to control ich in this species.
ich; therapeutic bath; temperature
