- Thread Starter
- #41
It’s been about 5 hours since I tested luckily it’s a super simple test with Hanna so that’s a winOk. It's generally best to wait 12 hours or more to test alk, calcium, and magnesium after a water change or manually dosing. Test again right before you go to bed or first thing in the morning. The reading of 13 might have been a very temporary rise...