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Old 16-04-2005, 02:13 AM   #13
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Originally Posted by mr_donitos
bros, just wondering, how long before you notice that the 20K changed to a slightly less blue than before. I've been running mine for about 6 months and my wife noticed that the color getting a bit yellow. it was so gradual that i didn;t even realize it myself. anhbody had the same experience or am i just imagining it
Well, A typical life-span of FL(including T5) depends on usage is between 6~9mths. I have since changed around 3 tube in 12 mths(2 tank, )...I think will have to change one by it is recommended to not to change all at one-go....a sudden change of intensity may not be too good for coral.

My 2-cents thought.
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