Quote:
Originally Posted by chris88
2 years yikes. 9-12 months max is all they are really good for. The spectrum shifts over time and the par drops big time. there are much better options out there. you have 4 of the lowest par bulbs going there all peaking in the same spectrum. use the combo i suggested and you will get much higher par, better color, and it will fill in the blanks that your hallides leave out.
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Well, all the T5 and HQI bulbs are over 2 years old. Everything is doing well and healthy. There is no algae on the rocks. I am thinking about getting new bulbs to see if I notice any difference in growth or overall health of my reef.