Rapidly developing dark spots on leaves

Wildgrass

Member
I am a new grower and have been trying to learn as much as possible and experiment, but keep running into problems. All part of the learning process. I am currently at the end of Week 5 of my grow. At the end of Week 3 I transplanted from solo cups with FFOF into 2 gallon pots using ProMix BX with a little bit of perlite added. I ran out of FFOF and had to use the ProMix. I have never done soilless before and have had nothing but problems ever since. My plants have been growing very slowly and have shown consistent deficiencies. I have also had watering problems with the Blueberry CBD strain. The medium takes a real long time to dry out. Three days ago I noticed some dark spots appearing on two of my 4 plants. They have been rapidly developing and now are beginning to consume entire fan leaves. Please help!

Temps range from 68 at night to 77 day. RH is 45 - 60%. Plants are ~20 inches away from MarsHydro TS 1000w running at around 100w draw.

Here is my feeding schedule for the last few weeks (Currently Day 35 - taller plant is Blueberry CBD and the other is Super Lemon Haze):

Day 21 - Transplanted all 4 plants into 2 gallon pots. Watered with RO water and 2ml/L BioRhizotonic

Day 25 - All 4 Plants - Feeding with dechlorinated tap water with .5ml/L calimagic, 2ml/L BioRhizotonic, 1.5ml/L BioVega, and 1.5ml/L Cannazym ph'd to 6.3 w/Earth Juice Natural Down. PPM of 620.

Day 29 - Super Lemon Haze - Feeding with 700 ml RO water with 1ml/L GroTek Vital, 2ml/L BioRhizotonic, 2ml/L BioVega, 0.5 ml/L of Grotek Micro Power and 1.5ml/L Cannazym ph'd to 5.88 w/Earth Juice Natural Down. PPM of 660.

Day 31 - Feeding with 700 ml RO water with 1.5ml/L GroTek Vital, 1ml/L BioRhizotonic, 1ml/L of Grotek Core, 1ml/L BioVega, 1 ml/L of Grotek Micro Power, 0.5 ml/L of Grotek Root Booster and 1.5ml/L Cannazym ph'd to 5.83 w/Earth Juice Natural Up. PPM of 835.

Now I got my hands on some FFOF and was going to repot into 3 gallons witht he FFOF that I am familiar with and try and carefully shake off any excess ProMix BX.

Let me know if I need to provide any additional information. Thanks!
 

Attachments

Top