Changing bulbs

[rbarb1111]

I have a coralife 96 watt 50/50 light. How often does the bulb have to changed.

Thanks

Richard

 

[seaham358]

What kind of bulb?? PC I am guessing from the watts..... they say 12-16 months from what Ive read. Reef or FO tank. Fish tank then lighting is not that big of a deal and u can run them longer.

 

[fishfreek]

I change mine out every 9 months when it comes to PC bulbs. I have found the specitrum and intensity drops off around the 7-8 month timeframe. Going a full year can be a detriment to my corals.