Hmmm...have had saltwater fish since I was 20 and one of my degrees is in microbiology. In addition I've studied bacteriology along with marine biology. I mostly enjoy Microbial ecology because it's interesting to me. I for one am most definitely no expert by any means. Not saying he is "wrong", however the life cycle of these parasitic organisms have been highly researched and are continuously researched. What he is telling you DOES help your fish with boosting immune systems. In doing so, it helps them fight off disease and parasites. What he is not telling you is that once you stop doing what you are doing, your infected fish will begin to lose immunity as it only lasts a few months. Therefore, they will be susceptible once more. I'm sorry however if he claims garlic will cure ich and you will no longer have it in your tank then he needs to consult with the many researchers/SCIENTISTS in Marine Biology out there because they are wasting millions studying disease, viruses, parasites, etc. . I may sound harsh and I apologize however I believe in science and proven data. You are not killing the parasite and if he is telling you that then he is highly misinformed.
