I've had a different experience. Sometimes (but not always) I've noticed appetite suppression when using Prazi. The fish still eats - just not as much or as aggressively.
Hi I have a 150 fish only with rock, aragonite and bio ball flowing in the sump that I currently dose Cupramine. Most of the are angels, tang, and wrasses. I want to treat the whole tank with Prazi do I need to remove Cupramine before dosing Prazi? Should I do a water change first before starting the Prazi? How many treatment and for how long and what amount of water should I change for each treatment? Thanks in ad advance Jimmy