Coral looks fine, maybe a lil beat up. Truth is, there isn't much you can do anyway except wait at this point, even if it wasn't doing well. You might consider removing new coral from plugs and mounting them to rubble in your system. Not only do plugs serve as a carrier fro many "pests" and new algaes, they always look like "Bad word" You may not notice the plug now but if you stay in the hobby you will notice them years from now and wish you had not left them in your system.