Wish I could remember what I said
...... Here's something to consider..... How big is this leather that you have?.... Do you run carbon?..... In the four years I've been with Red Coral I've started to notice that tanks with leathers seem to give SPS trouble.....for most SPS stability is key.... Could just be issues related to the swing in your parameters....
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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