Chris27
New member
Some fish can't take copper , lionfish are one that can't. Where does this lfs keep the ones that can't take copper? If you want to be 100% sure your fish never get ich, QT them with hyposalinaty (1.010) for 6 weeks.
Hypo is really only good for Crypt....other parasites and ailments are unaffected by it. So at times, copper, formalin, or an antibiotic may be necessary.