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#1
04-07-2011, 08:47 PM
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You should get a test kit that can isolate carbonate alkalinity from borate alkalinity. I went through a mini SPS crash that I simply could not explain a couple of months ago because my total alkalinity kept testing in 'normal' ranges.
For a variety of reasons my borate alkalinty was actually making up too much of that percentage and my carbonate concentration was dangerously low. As soon as I realized it and I corrected the carbonate alkalinity specifically (even though it made the total alk higher than I normally like), the 'crash' completely stopped and has now reversed. I only mention it because you said that part of your calcium reactor was clogged for a while. If you use a salt with a lot of borate it can really start to obscure a problem with low carbonate over time. 
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#2
04-19-2011, 02:42 AM
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I just want to give this thread a quick update.
there hasn't been any RTN or STN for the last 2 weeks. and all the injured sps has been starting to regrow over the dead spots. What I have done so far. A 30% water change and another 50% water change 4 days after. add TLF phoban 150 as carbon reactor. replaced Vertex In-100 with Skimz SK180 skimmer. removing dying sps. boost up kH increase efflux output from ca reactor. Now, I have high ph than before. 8.2 during the day and 8.0 at night. versus 8.0(day) 7.8(night) I have to thank everyone for your input. Now... who has sps frags?? LOl
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150DD mix reef with 90 gal sump and 40gal frag tank purple tang, sohal tang, yellow eye kole tang, fairy wrasse. cleaner wrasse, leopard wrasse, and misc fish. GHL Mitras 6200HV X 2, MP40 X 2, MP60 X 1, tunze 6095 X 2, Vertex RX6 calcium reactor, Bubble King SM250, Aquamaxx bio pellets reactor, Profilux 3
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