And give it to another unknowing person...http://www.monsterfishkeepers.com/forums/threads/cichlid-addict-looking-for-help-lol.663824/
Check that out.
I say sell the tank and fish and thats a 100% way to get rid of the ich issue you're having.
I dont beleive in using meds honestly. Salt and good water take care of the most of it. Proper temps are really important too. Cold water is much more prone to ich. Also if the fish are stressed from being packed together they wont be able to fight of the ich as well...
Aro and Dovii are too big for sure... Rest maybe but not all together. They are fine for now im sure but later... Sorry for jumping on that topic (seems to happen all the time, and its annoying) but just wanted to tell you that