I use Garlic Extreme. It is a garlic consentrate. The fish love it. I us Rid-Ick. It works very well, but you need to take fish out of your main tank before use.
A quantine tank is no good the main tank is now infected.
Most fish need nothing done to them, they can fight off ich by themselves if given a high quality food and made stress free.
Stress is what causes ich and moving him now would cause more stress if he truely has ich. Not only that a small tank would cause even more stress on top of that.
Problem is tangs catch ich more easily than any other fish and a tang is the only fish I have ever lost too ich.
Garlic does nothing to get rid of rich, it stimulates appetite so the fish has a increased chan e of eating.
Agreed with shred,In order to quarentine the right way you have to start with your very fish you get and quarentine every one added,Now ich is in your tank and will always be there.Its no big deal healthy fish will fight it off.Imo every one of us has ich in our tanks, its just like a cold to fish,just keep it fed well and try and keep your hands out of the tank so the fish doesnt get stressed.Some people will say take the fish out and put in a hospital tank and treat with copper meds but all that does is stress the fish out more and soon as you put it back into your display it will get ich again.So just keep the fish fed well with garlic foods and it should do fine as long as its not stressed.Once a fish realizes the aquarium is his new home he should never get ich again.
Looks like your tank is fairly new. Get a small tank with hob filter. Use either copper or chloroquine phosphate to treat the qt tank. Leave all fish out of display minimum of 6 weeks. Then it will be ich free. Just make sure you Qt everything you stick in the tank, including clean up crew and corals.
1- Isolate the fish - don't treat the whole tank - bad ju-ju - I would not treat a reef tank no matter if it is brand new or aged. removed the fish and in the future always quarantine.
2- Unable to Isolate - Garlic will help him by increasing his appetite which will help him naturally fight off whatever ails him.
He can't set up a QT it will kill the fish, as it needs to cycle.
If you do not have corals in the tank, might I suggest Hyposalinity, this will kill the parasite with no ill affects to the tank and no medication needed. As long as he is eating, your in good shape. The fish are capable of beating it themelves.