T5 bulbs going on 2 years old. Best timeline for replacing?

cybrook1421

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I just realized my T5 bulbs are going to be 2 years old at the end of this month :eek:. I have a 4bulb hybrid fixture. When I get new bulbs this month, what should be my process to replace? Surely I shouldn't replace them all at the same time. Would replacing one a week be ok?
 

sfin52

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I just realized my T5 bulbs are going to be 2 years old at the end of this month :eek:. I have a 4bulb hybrid fixture. When I get new bulbs this month, what should be my process to replace? Surely I shouldn't replace them all at the same time. Would replacing one a week be ok?
2 and 2 space a week apart
 

Hugster78

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I replace all of mine at the same time. Never had an issue. ATI 8
 

michigan-reef

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I agree with the first response, 2 and 2 a week apart. I am not convinced it really matters but better safe than sorry.
 

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