Phoenix 14K MH Bulb 11 months old, replace?

sen5241b

Reef enthusiast
Phoenix 14K MH Bulb is 11 months old, replace? My corals seem like they have been a bit listless lately. Could my 11 month old bulb be a problem?
 
That could be it...I've heard the mh bulbs should be changed once a year...so the bulb could be losing some of it's strength.
 
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