Yeah the low range kit sucked. I hated it so bad, I mailed it to someone on here. All they had to do was pay for the shipping.
The high range kit is very accurate, and very repeatable, and very easy to use(same exact procedure as the phosphate kit
does Salifert have a digital readout like Hanna or am I interpreting colors?Thats why I said get another test kit. With the salifert kit, you can just keep adding the third part and add the results together to know how high it is.
EDIT:
Second part. Forgot salifert changed the calcium test to just 2 parts.