lighting height

Discussion in 'T5 Aquarium Lighting' started by wolverine05, Jan 14, 2010.

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  1. wolverine05

    wolverine05 Plankton

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    Houma, Louisiana
    OK, I have a really silly question so bear with me. I have a 90g tank, 24 deep, I have 4x54w T-5 lighting which is about 6.5 inches from the top of the tank. My closest coral (gold finger leather) is approx 7 inches from the top of my tank. Now my question is, are the lights too far from the tank, because the coral is not opening up. I'm using 2 white and two blue T5 bulbs. Any help would be appreciated.
     
    wolverine05, Jan 14, 2010
    wolverine05, Jan 14, 2010
    #1

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  2. 2in10

    2in10 Super Moderator

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    The light should be about 4 to 5 inches above the water. If you are not circulating your water about 20x per hour your leather may not open much. They like high flow.
     
    2in10, Jan 14, 2010
    2in10, Jan 14, 2010
    #2
  3. wolverine05

    wolverine05 Plankton

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    yes i have a korolia 3 and a korolia 2 circulating the water
     
    wolverine05, Jan 14, 2010
    wolverine05, Jan 14, 2010
    #3
  4. steve wright

    steve wright Super Moderator

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    may be skin shed time for it Wolverine?
    they can stay closed for a couple of days or IME a week when they are shedding skin

    do you have other corals in the tank?
    if so how are they looking?

    Steve
     
    steve wright, Jan 14, 2010
    steve wright, Jan 14, 2010
    #4