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When to change my T5 light

Discussion in 'General Plant Topics' started by jonny_ftm, May 7, 2009.

  1. jonny_ftm

    jonny_ftm Guru Class Expert

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    Hi,

    I have a 4x54W luminaire on my 40-60G tank
    I read on many forums that they should be changed every 12 months, and never all at the same time, that is 1 to 3 months between changes

    Now, I never read if with EI, keeping T5 modules for a longer period is safe or not. Any clarifications on when and how should I change the T5 modules?

    many thanks for your help
     
  2. shoggoth43

    shoggoth43 Lifetime Charter Member
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    There was a recent thread about T5 life. The general gist of it was that they may be reasonably used past the 12 months and closer to 18-24 months for the general planted tank purposes. Staggering the replacements may be a good idea in that you won't go from 70% of output suddenly to 100% which may cause issues as your plants adjust and you run into CO2 and nutrient demand issues as a result of a potentially massive increase in light.

    -
    S
     
  3. jonny_ftm

    jonny_ftm Guru Class Expert

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    Many thanks for the precision

    Do you have, by case, a link to the topic?
     
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