I have a 29 gal mixed reef. I have a 346 watt lighting system. The MH light is a 250 watt HQI, Phoenix 14K bulb. The remaining 96 watts are Actinic HO T5. The MH bulb is about 10 months old and I am starting to see some bleaching in my SPS and red mushrooms. I assume this means it is time to...