Quote:
Originally posted by Engine 7
I always used Salifert alk testing kits but I started getting the higher readings around 12-14 dkh. I then switched to Tropic Marin and started getting 10 dkh. I still use Salifert for nitrate, phosphate, and calcium without problems.
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I had the same issues with salifert alk test kits, even got it replaced with a new one and still had issues with it reading way off by 3 points.
I have been using api with no issues, i might try elos for the heck of it.