cottageman
- 376
- 93
So I've had the same setup for about 2 years and this just started happening recently. We feed anywhere from 5.8-6 depending of the week of flower, we run in 3 gal pots with rockwool. We flush once a week and starting at week 3 we get low ph around 5-5.2. We feed at 6 when we flush and the Ppm readings are more than fine. It's causing the plants to have either a calcium or mag deficiency. What is causing this? The variables that I changed was I switched bases from an sensi to heavy 16. I also added uptake by cyco instead of diamond nectar. Maybe one of these are the causes? Any help would be greatly appreciated!