Blue Ram Posted September 14, 2010 Report Share Posted September 14, 2010 (edited) How often do I need to change: HOT5 light bulbs Power compact bulbs I just replaced a "Powerglow" HOT5 with a "Colormax" HOT5 bulb. I noticed that when the bulb is on, it has only a slight shade of pink while in a regular T5 bulb is very pink when on. Could the bulb be defective or is that the colour of the HOT5? Edited September 15, 2010 by Blue Ram Quote Link to comment Share on other sites More sharing options...
jvision Posted September 15, 2010 Report Share Posted September 15, 2010 T5HOs should maintain their intensity for most of its life; however, there will be a degredation in color temp. That's probably what you're seeing in the older bulb. Quote Link to comment Share on other sites More sharing options...
fishclubgirl Posted September 15, 2010 Report Share Posted September 15, 2010 My question would be what's in your tank?? If it's heavily planted, yes the bulbs should be replaced more often. If not, I'd replace them when they burn out :hey: Quote Link to comment Share on other sites More sharing options...
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