Regarding changing nutrients; I have read that if PPM increase and pH decrease - add ph'd water, if PPM decrease and pH increase - add nutrients (increase PPM), and if PPM and pH remain stable - don't change anything. Problem is that my system is a combination of both recently. PPM decrease every day and pH also decreases every day. For example; two days ago my PPM were 390 and ph was 5.9, the next day PPM: 365 and pH: 5.7, today, PPM: 340 and pH: 5.5.
This pattern has been going on for a couple of weeks. The plants are now drinking lots of water so I am adding 5 gallons every 4 days or so. Each time I add 5 gallons, I also increase the nutrients up to about 400 PPM. I don’t go over this because last grow every time I increased the PPM over 400, the plants would show signs of burn. Even during flower I could not get over 400 PPM without signs of nute burn.
This is my second grow, Granddaddy Purple (4 plants), DWC (5 gal per tote and another 10-15 gallons in a control res so 30-35 gals total), about week 4. They have been topped a couple of times so growth has been slowed a little but they look very healthy (see pic).
Some of the top growth has 11 leaf fans so I think they like the nute schedule so far but what do you folks think about the PPM and pH both decreasing every day? What does this mean?
![IMG_1171.JPG](/data/attachments/3141/3141467-4eb8c1091bc22ac7f1c82219ab198cba.jpg)
This pattern has been going on for a couple of weeks. The plants are now drinking lots of water so I am adding 5 gallons every 4 days or so. Each time I add 5 gallons, I also increase the nutrients up to about 400 PPM. I don’t go over this because last grow every time I increased the PPM over 400, the plants would show signs of burn. Even during flower I could not get over 400 PPM without signs of nute burn.
This is my second grow, Granddaddy Purple (4 plants), DWC (5 gal per tote and another 10-15 gallons in a control res so 30-35 gals total), about week 4. They have been topped a couple of times so growth has been slowed a little but they look very healthy (see pic).
Some of the top growth has 11 leaf fans so I think they like the nute schedule so far but what do you folks think about the PPM and pH both decreasing every day? What does this mean?
![IMG_1171.JPG](/data/attachments/3141/3141467-4eb8c1091bc22ac7f1c82219ab198cba.jpg)