Am I colour blind...? - Canreef Aquatics Bulletin Board

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Am I colour blind...?

01-08-2007, 02:00 PM

ed99

Member

Join Date: Feb 2003

Location: Calgary

Posts: 164

I had one of those Hagen test kits a few years ago and I also struggled reading the pH. The colour often didn't match any of the ones on the card.

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