I've got a Bolivian Ram, Gold Ram, and Blue Ram in with golden barbs, cherry barbs, snakeskin barbs, and neon and black neon tetras, no one has any problems, everyone leaves everyone alone. The Ram cichlids haven't even shown the slightest bit of aggression towards any others...
I'd go for it.
Edit: My tank stays around 78 degrees or so, good for the gold and bolivian ram, little low for the blue, but he doesn't seem to be suffering any ill effects.
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