Blue light, algae ?

Discussion in 'Lighting' started by mala1610, 6 Jan 2013.

  1. mala1610

    mala1610

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    Hey guys Ive been battling with algae for around 2 months now, it seemed to of started when I added a new quad T5 54w unit to my tank I kept my duel T8 unit still on with the new unit. I changed my white light but not the blue one.

    Would an old blue light affect algae?
     
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  3. ccwilke

    ccwilke Majestic Pets Solutions Sponsor

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    To me T5 is much brighter than T8 how long are you running your tank lights and what kelvin rating is your globes?
     
  4. belindamotion

    belindamotion Google Master

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    It sounds like the Blue is now "old"...which probably now falls in the "red spectrum"...(algae loves that)..I had that when my Tubes started to reach their "sell by date"...so to speak...:p
     
  5. mala1610

    mala1610 Thread Starter

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    White light - 9am to 4:30pm
    Blue - 6am to 7pm

    Quad says 10 000k ( does that include the blue globes as being 10 000k)?

    Can't seem to find it on the 2 T8s ??
     
  6. mala1610

    mala1610 Thread Starter

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    Sorry I was under the impression that an old white light causes algae, cos I bought the tank with lights second hand,didn't ask how old the lights were and have been using them for 8 moths (T8) I did change the white light but left the blue one. So the blue globe could be a couple of years old:(
     
  7. dallasg

    dallasg Moderator MASA Contributor

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    My understanding is that it would be white light getting old, older they get the more red gets emitted and more your algae will grow
    It could have also started with the new globes as their might have been nutrients for them to grow with the better light

    If you disturb your gravel is there dirt/dust that comes from it?
     
  8. mala1610

    mala1610 Thread Starter

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    Yes I would say that dirt/dust comes up.
     
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