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MH lighting? Bulbs really

Discussion in 'General Discussion' started by Kpotter2, Mar 17, 2012.

  1. Kpotter2

    Kpotter2 Expert Reefkeeper

    What is best for Growth on corals? 10k,14k or 20k?
    I have 20k on my MH now and need to replace them soon. I am figuring out should I go with 20k again or 14k like most do?
    Thanks
    Kyle
     
  2. mthomp

    mthomp Inactive User

    10K is best for growing but I find they make the water look yellow. I prefer the look of 20k but I feel with 14k you get good growth and realistic color.
     
  3. Kpotter2

    Kpotter2 Expert Reefkeeper

    Thanks mthomp!
     
  4. Reeferforlyfe

    Reeferforlyfe Inactive User

    Indeed, the lower the kelvin, the better the growth. I ran 14 k on my mh, until I got the AI's. Never go back to MH.  14 k is the best of both worlds. Great color, and growth. Gl
     
  5. Kpotter2

    Kpotter2 Expert Reefkeeper

    Great thanks Money!
     
  6. Tholton33

    Tholton33 Well-Known ReefKeeper

    go 6500k you'll grow like mad! just not very good to look at
     
  7. Jamie

    Jamie Well-Known ReefKeeper Vendor




    Defiantly, you'll also be able to grow more algae with a 65K bulb[​IMG]  Personally I like the 12K reeflux bulbs, with the luxcore ballast I can get anywhere from a 10K to a 20K color out of them by varying the wattage.

     
  8. Sponge

    Sponge Expert Reefkeeper Vendor

    Agreed that the lower the kelvin, the better the growth. However, tank depth and how high above the tank needs to be factored in....In other words, PAR :-0)
     
  9. jstngates

    jstngates Experienced Reefkeeper

    i had 10k too yellow! i switched to 14 k phoenix and they are great.
     

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