Very good point about garlic. It is the same for those who sometimes claim their 'reef safe' product cured their fish. Since Marine Ich seems to 'disappear' for a while, some people think their fish are cured, then a few hours or even a few weeks later, spots show up again.
A freshwater dip does not kill Marine Ich. It can help a fish with gill infestations of microfauna, and it is a very good prophylactic treatment. My procedure for the dip on all new, incoming fish (that don't have a guarantee which requires I not do this) is in this thread:
Read December posts in this thread: http://www.reefcentral.com/forums/showthread.php?s=&threadid=669022
OTH, a FW dip has been known to cure a variety of fluke and worm surface parasites and it has been known to even cure Marine Velvet, but this latter case is harder on the fish than a copper cure, IMHO.
A freshwater dip does not kill Marine Ich. It can help a fish with gill infestations of microfauna, and it is a very good prophylactic treatment. My procedure for the dip on all new, incoming fish (that don't have a guarantee which requires I not do this) is in this thread:
Read December posts in this thread: http://www.reefcentral.com/forums/showthread.php?s=&threadid=669022
OTH, a FW dip has been known to cure a variety of fluke and worm surface parasites and it has been known to even cure Marine Velvet, but this latter case is harder on the fish than a copper cure, IMHO.