If it’s clean or not, if there’s anything built up on it then it won’t be able to read the pH correctly You may need to do a health check. Do you have the calibration/cleaning kit?
1 Like
No guess I will get one ordered. Should I trim lower area?
1 Like
If you can get a fan in there I wouldn’t worry about it. But for next time I would do it earlier in the grow do that things focus more on the upper half of the plant
1 Like