Diatoms are usually caused by one of three things........excess nutrients, either from over feeding or from die-off from a new tank cycle........old bulbs can sometimes cause an "outbreak" as the color temperature drops with bulb usage.....or it could lack of flow, diatoms tend to take hold in areas of low flow.........all relatively easy fixes..... or you could pick up some "coral snow" to treat the symptoms....
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260g mixed reef, 105g sump, water blaster 7000 return, Bubble King SM 300 skimmer, Aqua Controller Jr, 4 radions, 3 Tunze 6055s,1 tunze 6065, 2 Vortech MP40s, Vortech MP20, Tunze ATO, GHL SA2 doser, 2 TLF reactors (1 carbon, 1 rowa). http://www.canreef.com/vbulletin/showthread.php?t=50034 . Tank Video here http://www.vimeo.com/2304609 and here http://www.vimeo.com/16591694
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