[Acro]

Perhaps the people advocating old bulbs and lower kelvin bulbs could post pics of their tanks. Then people advocating newer bulbs and higher kelvin bulbs post their tanks. This way we'll let the pics do the talking. I myself like the newer high k bulbs and as long as I want the best for my corals, I will always replace bulbs at or before a years time. The reason I like the higher k bulbs and keeping my bulbs new are for one reason only... Visually its clear, my corals are healthier. If your keeping less light demanding animals then sure your able to get away with less longer and perhaps do just fine. Those raising high light animals will I'm sure agree with what pocilipora is saying. Again a pictures worth a thousand words. Put those pics were your mouth is everyone.