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Old 12/07/2015, 12:26 PM   #25
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Join Date: Jan 2013
Location: Miami, FL
Posts: 265
When using api alk test if drop 6 is blue,drop 7 is greenish,drop 8 is yellow... would it be correct to assume my alk is about 7.5? or a solid 8?

Easy does it...

Current Tank Info: 40b. sps, Metal Halide,big skimmer,lots of flow, barebottom, natural seawater.
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