Hi all! First ever indoor grow and I am having some problem with 2 girls out of 3.
I have a top-feed DWC Setup with a 40l reservoir. The strain is Glookies by Barney Farm.
I have just completed week 1 of veg and the last 2-3 days I started to get spot on the lower leaves. I did a water change 2 days ago and the problem is looking to be even worse. My nutes contentration was also a bit lower for the first week of veg.
I am using the Canna Aqua lines of nutes, and right now I have;
1.8ml / L of Aqua Vega (A & B)
2ml / L Rhyzotonic
2.5ml / L Cannazym
1ml / L Cal-Mag
This is the “low feeding chart” from Canna, and half the recommended dose for Cal-Mag.
The tank is average 6.0 of PH and I have 1.3 of EC (it was 1.00 before I added the Cal-Mag). Day temp is 75-78, night temp 68-72 and humidity is constant at 50%. Exhaust fan always on, air pump and top-feed also. When lights on rez is at 79*.
Judging from the chart online I determined I either have a P lack, Calcium or magnesium defiencies, or wind burn. I moved the fan away and added half concentration of Cal-Mag. 24hr Later it’s looking to be even worse.
I guess I should add that until yesterday I had to adjust PH down from 3 to 5 times a day, it was going up about .1 per hour for the first week. Yesterday I added Cal-Mag to the mix and have only saw a small increase of .06 in PH over the whole night. Root also reached the tank about a day ago.
Any help or pointer would really help me!
Thanks a lot guys, and happy growing!