Hi folks!
I just did a calcium test with both Red Sea and Hanna. The Red Sea showed 425ppm and the Hanna showed 550. I did the tests twice just to make sure I didn't do something wrong and none of the reagents are expired. Any ideas?
I just did a calcium test with both Red Sea and Hanna. The Red Sea showed 425ppm and the Hanna showed 550. I did the tests twice just to make sure I didn't do something wrong and none of the reagents are expired. Any ideas?