Bev,
I always enjoy reading the threads you post because I'm usually going through the same problem.
So I take note.
GREAT RESOURCE from Workingman, THANKS alot for recommending that web site!
I learned that the the ENCYSTED stage of the ich parasite is resistant to most treatments and remains in the GRAVEL of the aquarium. Have you tried the freshwater dip on your fish? I've heard it is only effective in killing parasites on the fish but does little to treat the tank. Therefore you must maintain levels of medicine in the tank until all the cysts embedded in the gravel, complete their complex life cycle into the stage of organism tomite stage)where they can be killed.
Bev, I'm glad you got your skimmer working better with help from Johnny. Also, is your shoulder problem better from lifting so many buckets of water???
c-c