ah yes, but Lauries tank kills most coral
.....not sure if its the parameters or her "reef" fish.....
I on the other hand have a full blown mixed reef .....heavily sps dominant, some lps and a whack of zoas....... not 1 drop of Ca, Mg or DKH in two years(I have a profilux doser sitting on a shelf collecting dust).....tank has been on Prodibio for about three monthes and thats it........
how big is your tank David?.....I would think about getting in to the bulk chemicals if your tank is over say 100g.....this will save you a tonne of money over buying pre-mixed solutions....
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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