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Hi there,
I just wondering if those of you that use xm 20ks are getting good growth. I just switched out my pheonix 14ks with the xm 20ks. I like the color but I dont want to sacrafice growth for color. So please let me know how they are working for you. Thanks
 

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300 Gallon Reef Tank
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I don't use them but I don't believe the 20K bulbs of any brand are used for growth. Great color though.
 

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i use the 250 xm 20k..on my sunpod the ballast burns a little whiter i think, its blue but not blue like some other tanks i have seen...i think i get good growth, but i would rather have some crazy colors, my friend uses a 10k and his stuff grows way faster, but his mushrooms are red and mine are glowing bright flourescent pink(shrooms came from same frag)..i also supplement with t5s for more actinic..

maybe you could go back to the 14k and i think i saw a 15k, that would right in the middle...also my 20k doesnt look much difference in color from the 14k that was stock..
 
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