Adding another MH

Discussion in 'Metal Halide Aquarium Lighting' started by szidls, Sep 19, 2004.

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  1. szidls

    szidls Feather Duster

    Joined:
    Jan 24, 2004
    Messages:
    200
    Location:
    Lynnwood, WA
    Hey all,
    I'm adding another 175 watt MH to my 20 gal long canopy. Most of my sps corals are glued to the live rock. Since I don't want to move the corals. What is the best way to acclimate them to the new light? Sould I reduce the photo period? Any suggestions?
    Thanks, Scott
     
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  3. Matt Rogers

    Matt Rogers Kingfish

    Joined:
    Dec 31, 2000
    Messages:
    13,466
    Location:
    Berkeley, CA
    Most recommend shade cloth - greenhouse stuff - or window screening. Start with a 2-3 layers and then remove one as time goes on. Don't put it too close to the light itself.

    I agree that reducing the photo period would be a good idea.