Water temperature

Discussion in 'Coral' started by newhobby, Nov 6, 2011.

  1. newhobby

    newhobby Guest

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    Guess I need to buy another heater.
    I normally keep water at 77.
    Is 75 too low to keep during winter nights?
     
  2. Kensington Reefer

    Kensington Reefer Supporting Member

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  3. seminolecpa

    seminolecpa Past President

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  4. Western_reefer

    Western_reefer Guest

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  5. newhobby

    newhobby Guest

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    Thanks :)
     
  6. bondolo

    bondolo Supporting Member

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    I was curious so looked up daily coastal sea temperature for Fiji and Hawaii. The Hawaii data was better but both appear consistent. It looks like daily water temperatures fluctuate about 1-2 C max per day at a coastal locations. Out on the reefs may fluctuate somewhat less. Over a week or a month the temperatures seem to be in a 2-3 C degree range (weather most likely accounting for the wider range). Over a year almost 5 C degrees from lowest to highest. None of these changes would be sudden, not more than 2 degrees C per day. Looking at Hawaiian weather charts for the last month along with sea temperature it looks like they experienced a 2 degree drop in 12 hours along with a barometric low, indicating a storm or bad weather. Air temperature dropped by almost 7 degrees C (to a chilly 72F :p ) in the same period.
     
  7. GreshamH

    GreshamH Guest

    Hawaii is probably a horrible place to look into coral reef temps... unless you're trying to emulate the barren brown reefs of Hawaii.

    Colder reefs grow slower, if that is your aim. I run 74f - 76f.
     

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