A couple of weeks ago I finished off my Elos DKH test kit. My DKH had been low (according to the Elos kit) so I had been slowly trying to get and keep it up near 9. The only replacement kit we had at the shop was an API so i brought that home and was getting the same lowish reading as the Elos kit. We finally got some Salifert kits in so I grabbed one of those and it tests out at 12.5
WTF?....Test with the Sali kit again....12.2
...test with the API kit....9....So which kit do I believe?
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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