I know there are some medications for ich that claim to be reef-safe, these may not work as well as hyper salinity or copper treatments but unfortunately due to lack of room removing the fish and putting them in a quarantine tank is not an option so I need to know which of these so called reef-safe ich medications works best and is the most reef safe?
Istorc has already told you, correctly, that there is no such thing as a "reef safe" ich treatment.
No matter what the bottle says, no matter what the manufacturer says, no matter what the LFS tells you, no matter what others might say, there are no "reef safe" medication that actually work.
Now that we have that point worked out, the only additional question is what to do about your fish. Either get the quarantine tank you need, and treat the fish; or give the fish away, and let someone else treat them; or consider getting out of reef keeping as far as fish goes.
Like it or not, if you want fish, you are going to need a quarantine tank, because you are going to want that new fish. If you don't quarantine, you are going to repeat the whole process of treating ich over and over again. Period.
I know this post may sound a bit harsh, but this is what you need to do.
Keep in mind that if these "reef safe" medications actually worked, in that they treated the disease and didn't destroy the reef in the process, we would all be using them.
