Worked for me. I had a ray that was wasting away. Had the ray for over a year and it even worked it's way up to being the dominant male in the tank. After a while the other rays outgrew him and began returning the bullying. He quit eating alltogether and the hipbones began showing. I seperated him and after a week of finicky eating you could see the forehead divit. All I did was Prazi and began using the garlic Xtreme stuff. It began eating more and more with the garlic. Maybe it was the garlic, maybe it was the prazi. All I know is it is getting better.
I just thought that since the Armatus and the CB Marble began taking garlic soaked shrimp, when it was quickly refused prior to the garlic, that the stuff worked.
I tend to ignore what the masses say and learn through my own experience. There's a lot of useless info out there that I hear regurgitated on a regular basis by people with no experience all the time around here. I've lost rays by listening to advice, and I've saved rays without making any threads. I tend to trust what happens with my first hand experience. This statement has nothing to do with Nic. I don't doubt him at all. I've learned a lot from him. He's very knowledgable and if he says it didn't work then maybe it didn't. Not saying he's wrong. Just saying it worked in my case, and like I said it affected a ray that was not sick and a group of Armatus.
Hope that helps.....