Premium Aquatics June 6, 2018 Share June 6, 2018 Link to comment Share on other sites More sharing options...
AlanM June 6, 2018 Share June 6, 2018 That copper tester looks really cool. Will order one for sure when I get more fish into QT. It will be a relief to be sure about the Cu level in the quarantine water. I have trouble reading the shades of blue. Long thread on them over at R2R https://www.reef2reef.com/threads/coppersafe-warning-along-with-research-on-hanna-instruments-high-range-copper-checker.368943/ Link to comment Share on other sites More sharing options...
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