- Joined
- May 12, 2013
- Messages
- 8,141
- Reaction score
- 3,367
- Location
- Miami
- What state or country do you live in
- Florida
I'm not sure i don't have a test kit for kh
I would get one. It's even more impt than ph IMO. If you can afford it, hanna checkers are great. But I used API for years and the readings are pretty close to the hanna.

