Quote:
Originally Posted by reefwars
alk and phos are awesome calcium sucks, lr i like the ulr not so much 
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I use a Hanna kit for alk and I also read that Calcium wasn't as good as the elos kit. I should have listened to Dave/Denny at Concepts as the Elos kit for phosphate is fine but comparing colors at low levels is not as good as a digital reading.