Anyone tried Aquarium Munster Protomarin Reef Safe Parasite Treatment ?

[Argentiner]

I had exactly the same thing. It just kept spreading while using it. After losing some fish, it eventually disappeared on it's own. I tried about 4 different times, even when I only had one fish with hardly any ich, it wouldn't work. No sick fish has worked for me once out of 3 times. You're better off just getting them out of the tank and treating with copper.