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?
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?