giesemann 72" infinity fixture too much light??

Discussion in 'Aquarium Lighting By Dana Riddle' started by Toomnymods, Sep 13, 2017.

  1. Toomnymods

    Toomnymods Well-Known Member

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    Im using a 72" giesemann infinity light fixture 3- phoenix 250w 14k bulbs and 4 60" 80 watt t5's.. 2 of the t5's are ATI blue + and the other 2 are actinic+ bulbs

    I'm currently running this light fixture above a 220 gallon reeftank 72" x 24" x 30" I just recently put in some sps frags and they are having a very hard time adjusting to this light. They lost most of their color within 2 weeks and I'm thinking this light might be too much for them. Currently my light fixture is 10" off the water surface and the time schedule is:
    actinic on at 10am
    Mh on at noon
    Mh off at 6pm
    Actinic off at 8pm
    Does anyone have any ideas what i can possibly do? Hate to reduce light schedule even more but will if i have to.
     
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  2. saltyfilmfolks

    saltyfilmfolks Lights! Camera! Reef! R2R Supporter R2R Excellence Award Photo of the Month Award Reef Squad

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    I'd look into a par meter first off.

    Then in the mean time, shorten the photo period. Start with the mh's and stagger the t5s.

    Consider raising the light as well. But if it's aestheticly pleasing where it is, just shorten the photo periods .
    It is a lot of light.

    Worst case really, you save yourself burn time on the bulbs.
     
  3. Toomnymods

    Toomnymods Well-Known Member

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    I went ahead and shortened the t5 by 1 hr as well as the mh by 1 hr.. Would the Neptune parmeter work decently?
     
  4. andrew james

    andrew james Well-Known Member R2R Supporter

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    When I started running MH coming from LED I ran them for 4 hours to start and would run my t5 lights for 12. Over the next several months I adjusted those times I'm now at 7 hours MH and 10 T5. I think the can really blast the corals at the start and you should ease into them.
     
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