I have a very large amazon sword, some other, smaller swords, crypts (long curly-type & smaller red), micro sword, pennywart, and a couple others that I can't remember the name of, but they are both red leaved and one of them is pretty delicate.
I dosed my tank the 1 TBS per 5 gallon and set the thermometer at 86, but it's actually at 88 right now because of the hot weather here. The fish seem fine, so I'm not too concerned.
I was thinking of doing daily or every other day water changes and am going to monitor how my plants are doing. The cories seem fine, so that's a relief. Depending on how my plants do with the salt, I'll continue adding salt to the water I add when doing the water changes, but if I notice that they are starting to wilt, I'll do the water changes without adding salt.
Have you ever treated Ick with just the high temp? I heard that Ich can be irradicated that way too.