Thanks Mike.
Sarah B. I run two skimmers and introduced it to one at a time. The tee in the air line really can give you fine tuning if the ph is going to high but I haven't needed it.
As for the calcium reactor, FWIW, I've had mine off line for about 2yrs now and corals have never been better.
Alk is very constant with kalj dosing I did use it alongside kalk dosing and now do quite well with just fully saturated kalk 24/7 from a still reservoir for a system loaded with growing sps. Once every two weeks or so I tweak it with a tablespoon of baked baking soda to maintain alk at around 9.6 on the 600gallon system. I also add 3/4 tblspn of calcium chloride to balance with the carbonate alk.
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Tom
Current Tank Info: Tank of the Month , November 2011 : 600gal integrated system: 3 display tanks (120 g, 90g, 89g),several frag/grow out tanks, macroalgae refugia, cryptic zones. 40+ fish, seahorses, sps,lps,leathers, zoanthidae and non photosynthetic corals.
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