Help! Brown jelly disease!

[blu11]

All of a sudden 4 or 5 ricordea are covered with brown jelly disease. There are probably 40 or so in my tank. The infected are attached to a huge rock with many other corals on it so I can't take them out to dip. What can I do to prevent it from spreading?

 

[moondoggy4]

I was told to use something like a eye dropper and suck up the brown jelly. When the brown jelly gets on another Ric it will start all over again.