My ram cichlid is darker in color, red on gills, loss of appitite, sitting on bottom of tank, heavy breathing, whats rong with him
Your ram cichlid could be experiencing a health problem in accordance to the symptoms you have stated. You need to contact a vet immediately for diagnosis and treatment before it's too late.
Yes dying must get him to a sick tank to keep him from infecting other fish in your tank. Some kind of fish disease has definitely struck him.