SO...Once its on the fish, you are GUARANTEED to have live, infectious particles in your water for AT LEAST 28 days since you last saw a white salty grain on your fish.  By the way, Ich commonly infects Gills... but you cannot see that...  Ozone will not get at all the places the parasite is nor effectively kill the entire population.  Pull your fish, treat them with copper or hyposalinity (whichever you prefer), leave the display FISH free for at least a month, then go ahead and put them back.  It sucks, but this is just a simple biological reality, you can go ahead and get a microscope and find each of these different morphs of the parasite in your tank if you really look.  The fact is, this is NOT something unusual in nature, this is pretty much bland vanilla flavored changes in an organism as it switches to different lifestyles, many things do this... we just think its weird because most of them are so small you need a microscope to see it.... but you know that a fly larve looks a lot different than a fly right... so if you came into a room and saw no flies but a ton of larva you would instantly know that the room in question was very far from fly free... in fact it was infested.  The fact is, you cannot see ICH but for a very short (7 day or so) part of its 30-40 day life.  Its THERE.   I don't understand where garlic came from or why its so often suggested.   I would suggest you look into this a bit more (there are a lot of resources, even books from people with degrees in parasitology and marine biology) and decide for yourself. 

If you decide that its going to require treatment based in science I think you will find that the following options exist for our home aquaria... there are all sorts of chemicals that have been tested in marine fish breed stocks in aqua culture.  I would be heisitant to recommend them in a home situation.

ALWAYS up for learning... thats why I post, to try to help... and to ask questions.  I am super glad you called BS... LOL... if its BS! 

Give me something real to learn from though... 

Too bad its not like chicken pox... once and your done.  Or at least is not always like that, only some of the time.  

To be honest, all I am trying to do is point out that there are very few concrete known facts with respect to this parasite, heck we don't even have human biology nailed down and we spend hundreds of billions a year on that particular problem.  So... if you want to go with proven methods and by that I mean things that have undergone some type or rigor in review and evaluation of the data... and your dealing with fish... in a coral reef... if your home... the list gets pretty small pretty quick.  

If you then turn to personal observations as your guide, well.... there you go.  Its rapidly random and you will not have to look far to find someone telling you to play music.  Not suggesting that anyone here is saying that, and we have people with a lot more experience than I on this board and I listen to them... but I have a pretty strong background in some aspects of this topic so I am taking a pretty straight line approach, things that I am confident will work- based upon reliable study of a scientific basis- I am recommending.  Thats all.  

That does not mean other methods do not work, and I probably should not have stated categorically that Ozone would not work... information... needed.

Acquired immunity to salt water ich is very well documented.  Its also not at all unusual, i.e. with respect to acquiring immunity to a "large" parasite, very common.

 

Things looking on the up and up... Spots are diminishing and fish aren't irritated anymore.  This is the action I took.  New UV light (mine was well, lets just say I probably had the equivelant of a Keychain flashlight running in there).  Ozone, running off and on the past 3 days (sometimes hours at a time).... I never noticed any change in corals etc.  Garlic, just started using it again to keep appetites up.  I originally tried Herbtana (I'm sure that did nothing for me).  A water change in the midst of it all.  I lost a Yellow Tang and my Powder Brown Tang (the likely cause).  I will be concentrating on getting a refugium up and going, keeping my temp stable, and maintaining my water chem.   I think the deep clean and addition of new fish I did recently kicked the sleeping bear....woops.  I will also be setting up a quarantine/hosp tank and will start isolating new fish for 48 hrs and use freshwater dips. 

 

So.... for now, I think I'm out of the woods unless the buggers are just between stages. I will certainly give a shout-out if anything changes! BTW, does anyone have some greenery to help me start my refugium?  You guys are awesome.  THANK YOU. See you at the next mtg. I am able to attend so I can put faces to the names.