Hello everyone,
I am new to Boston and just joined this but I can chime in here. I have used the Anti-parasitic, Anti-Bacterial, and the de-wormer and I'd like to think with success. I had no problem getting my fish to eat the anti bacterial/dewormer but they were more hesitant to eat the anti parasitic food. I used them in my reef tank without harming any corals though I made sure to scoop up any leftovers that didn't get eaten. I used them when new fish were introduced to the tank as thats when I had problems in the past.
After QTing a newer anthia and putting it in my DT, I did see a white spot (not actually sure if it was ich) but the spot did go away a week or so after feeding regularly with this stuff. My jawfish did get a white looking scrape periodically (possibly from digging) and I would always use the anti bacterial and it would disappear soon after. So though I cannot credit the foods solely, I used it rather than catching fish and putting them in a hospital tank and things worked out well enough.