- Joined
- Mar 12, 2019
- Messages
- 4,692
- Reaction score
- 3,502
I havnt chked the no2 in a while as i exhausted my test kit and due to the lock down here no1 is delivering. Am guessing that ill be high to
Have you been moving rock/sand around? If so then you could have nitrite, it’s worth testing, way cheaper to buy a nitrite test than keep changing water with no drop in nitrates.