#3
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+1 - check against another kit, both CA and Alk. It *could* be that your alk test kit is waaaaay off instead.
Further questions: - what salt are you using? (Purple lid Instant Ocean has low ca/alk/mag) - what salinity are you mixing it up to? (normal 'reef' would be: 35ppm == 1.0265sg == 53ms) - what equipment are you using to measure your salinity? - when was that equipment last calibrated? how?
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Single System Setup: 210G SPS reef, 225G FOWLR, 72G water change, 50G frag, 120G sump. I promise a journal at some point! (anyone need some coral frags? I likely always have stuff that is frag-ready) |