Ich and Clown Loaches

Question
I have a 55gal tank, 7 Tiger barbs, 2 Clown Loaches (showing signs of ich), 1 Pictus Catfish, 1 Peacock Eel, 2 Plecos and 4 Rainbow Sharks (have no fear, we've already planned on a bigger tank).

Today I turn on the lights and notice my pair of Clown Loaches are dotted with white spots.  One was even smacking himself up against a rock, seemingly trying to scratch an itch.  So, at this point I'm fairly convinced that they are stricken with Ich.

Given the scaleless fish I have in my tank (including the infected pair).  What is the best treatment?

I've already turned the heat up and the tank is at 80degrees, but I need to know the best, least intrusive treatment I can do for these fish without killing the others or compeltely ruining the tank and its inhabitants.

The water is perfectly fine, the only problem is this seemingly ich issue.

I'm quite new to this hobby, and for all the effort I've put into it up to now, I'd hate to ruin all of it.

Please, please, help.  

Answer
Dear Tony, I'm sorry to hear of your trouble. :-(

Unfortunately many times whenever ICK is present in the community aquarium...You'll have to treat the entire tank to insure no other fish get it. Treatment for Scaleless fish is hard. But for the majority of the time, simply halving the normal dose of Malachite green or other medication you are using is what is required for the most part. But please read carefully to note any warning to not use it on scaleless fish. Fortunately most medications for ICK can simply be half dosed to be safe enough for them.
For example: Quick cure is a reliable ICK medicine that i've used before on scaless fish like large catfish and the like. But please know I cannot guarantee anything when it comes to the delicate systems of fish--scaleless in particular.
Otherwise,I would try to use quick cure, at half the dose.
Be certain of the best water quality you can manage. All medications put osmostic stress on the fish and often results in poor water quality due to destroying bacterial colonies from prolonged exposure.

Keeping your aquarium warm in the 80sF (which you have already nicely done) is essential for speeding the life cycle of the parasites and hence making treatment periods shorter. Oftentimes, you'll only need to treat for 4 days to rid the whole aquarium of the ICK parasites. Just be sure to half the dose and check any warning labels before hand.

Daily water changes help tremendously in both water quality induced stress level and also removing excess white spot parasites freeswimming the aquarium. Thirty percent would be a good place to start.

Well, best of luck and feel free to write with anymore questions or concerns you may have. I hope this helps.

Best wishes,
Karen~