Tey have another product a friend of mine uses, I don't recall the name though. He says he's had success with it. I personally have only used Hikari Ich X, with total success. For now, at least for the next 1-2 weeks, keep soaking food in vitanims, Selcon does help, and start dosing your tank with vitamin C every day. I've been doing it for years now. It really does help the fish's immune systems, as well as coral health. I learned about it years ago. I haven't had a sick fish even in some terrible situations. It's not magic, it's just allowing the fish the ability to fight off the "common flu".