- Joined
- Sep 29, 2017
- Messages
- 1,122
- Reaction score
- 829
Used Hanna on display water first reading was 49 three days later down to 32. I only have one more test packet left so I'll wait until next week to check again. One thing is sure the salifert is absolutely useless to my eyes. From what I see vs what hanna tests at is way different. My nitrate destroyer and display tank show the same color on salifert but 4 and 32 on hanna.