heh
that stuff is not reef safe
and VERY carcinogenic to humans send it to hazardous household wastes
ich is from stress
kinda like the common cold for fish
whether the stress is from the system another fish or chemical exposure Etc Etc
basically find the source fo the stress, fix it, and the fish will USUALLY fight it on its own
if the fish was exposed to chemicals then its immune system is shot to hades and needs to be "fixed"
that can take several months (depending on the chem, exposure time, and concentration of the chem)
feeding good foods with garlic or the selcon will help a lot
making your own foods and using HUFAs helps too
ich is a parasite and it really is not in its best interest to kill its host
most of the deaths occur to secondary infections (bacterial)
ich can bloom and suffocate the fish by covering its gills
that is the only way ich can directly kill a fish
HTH
(and I didnt even say the S word
