Yeah. I had mine about the same and all my stuff was just brown and my zoas were inverting...especially my green ones. I was convinced it was because my light wasn't powerful enough. I was at my LFS and was complaining about the light to one of the employees. turned out he has the same light...he said to go 80/20 on the blue/white ratio so I tried it and he was right. Current config on my light is as follows:
RB - Ramps from 0% at 7am to 80% at 8am...stays at 80% until 6pm and ramps down to 3% at 8pm and ramps from there to 0% at midnight
DB - Ramps from 0% at 7am to 65% at 8am...stays at 65% until 5:30pm and ramps down to 0% at 7:30pm
Violet - Ramps from 0% at 7am to 30% at 11am...stays at 30% until 3pm and ramps down to 0% at 7pm
UV - Ramps from 0% at 7am to 12% at 1pm and ramps down to 0% at 7pm (no plateau...just a ramp up and ramp down)
Cool White - Ramps from 0% at 6:30am to 15% at 9am...stays at 15% until 4:40pm and ramps down to 0% at 7pm
Red - Ramps from 0% at 8am to 14% at 10:30am...stays at 14% until 4:40pm and ramps down to 0% at 7pm
Green - Ramps from 0% at 8am to 14% at 10:00am...stays at 14% until 4:40pm and ramps down to 0% at 7pm
I think I need to tinker with the settings a little more but so far this has helped a lot. The one coral I really noticed it on was my green montipora digitata. It was a deep, green when I bought it and it had just turned crappy brown over time. Since the change to this lighting configuration, it has turned a really nice bright green and is growing again.