please advise on ich treatment

[ebb]

I have a 240 with some recent additions that I did not quarantine, no need to tell about the importance of that, I know. Well now there is an outbreak of ich, 3 of the 12 fish in all are showing the signs, who knows if the others are not susceptible or just not showing it yet. I don't have another tank setup for these fish, currently the 240 is setup as a reef and there is 300lbs of rock.

The sick fish are a very small purple tang, a medium yellow tang, and a medium blonde naso (5 inches). I have an apparently healthy flame angel, pair of gobies, 4 very small clowns, dottyback, and sailfin tang. All fish are eating well and acting normally as far as I can tell. I have educated myself on ich and its treatment and realize that I will never eliminate it from my tank without removing all fish to hospital tank and treating there (PIA). I have a spare 30 gallon and a 55 gallon that are not in use that could be used as the hospital tanks, but I am concerned that it would be too many fish jammed in there. The sailfin is around 8 inches, stress from being in a 55 for 6 weeks could be worse than the disease especially since he is not affected currently. Another concern is ammonia spike when these fresh tanks cycle and the stress that will place on the fish, can that be handled with frequent water changes and no cycle? Could these fish possibly pull through without treatment?
What would you do?

thanks

 

[Psionicdragon]

Just hypo the main tank and move all the corals in a separate tank. Thats what I had to do and I didn't want to set up a ton of tanks because of having a lot of tangs. THere will be a die off in your main tank though, so you may need to monitor the ammonia spikes.

Cycle will help regardless and the only way to keep the ammonia down is to do water changes. I had to do a 10 gal water change every day for a week till my bio filter establishes in my QT¡@ tank.

3rd question: yes and no, depends on how lucky you are

 

[SueQ]

Don't make up a fresh batch of water. Use water from your main tank. It is already colinized with the good bacteria that will break down ammonia. If you run a hypo trt in your main tank, you will likely kill off an beneficial bacteria in your live rock and sand. Not something I would do if I had 300lbs LR.
I've been running a HOB skimmer on my QT tank to help with the ammonia/nitrate/nitrate issue and things have been going well so far. Just a thought;P