For a while most likely 6 months or so you could get away with it as long as the discus are big enough. For the past couple years I’ve always grown my cichla with discus and angels.
It’s a risk as always but I like to experiment. So far I’ve sucessfully done it with kelberi orinos and Pinima in a 180 up untill about 6” then I’ve moved them to the 400s