Reef Central Online Community - View Single Post - Is it about time to change the T5 light bulbs? Par meter readings

kangym · 06/17/2009, 11:39 AM

Thanks homeboyreefer and gem_nut85.
Find an interesting article referred by reefmaster3024 from CVR: http://reefkeeping.com/issues/2002-02/totm/index.php

My new lamps have arrived. The par drops almost over 30% after 10 months. The growth rate slows down, and I start to have difficulty to keep the brilliant color. Is it about time to replace with new lamps? Or hanging there for another two months to find out exactly how much the par drops.

06/17/2009, 11:39 AM	#60
kangym Registered Member Join Date: Feb 2005 Location: CA Posts: 348	Thanks homeboyreefer and gem_nut85. Find an interesting article referred by reefmaster3024 from CVR: http://reefkeeping.com/issues/2002-02/totm/index.php My new lamps have arrived. The par drops almost over 30% after 10 months. The growth rate slows down, and I start to have difficulty to keep the brilliant color. Is it about time to replace with new lamps? Or hanging there for another two months to find out exactly how much the par drops.