Indoor Fast Buds Pineapple Express Autoflower, first grow in coco

[Cooterjuice]

Believe it or not mate, I have had this issue twice in a soil grow. Moreso towards start of flower.

I never found out my issue exactly, but what I did find that was interesting was low humidity can cause this, and a lockout.

You will be more prone to a lockout in coco because you are using autopots?

What is your RH and how much are you feeding them and how many times a day?

I would not treat her with calmag yet because it can cause more problems.

Make sure she is getting watered to run off every day and check the run off PPMS and PH

RH has been 57-65%, Temps 70-80°F. Running drain to waste. Fertigating 3 times a day for 35 seconds, approx 1000ml per plant each cycle, getting 300-400ml runoff, 1000ppm in 1000ppm out was my readings this morning, PH has been between 5.8-6.3

 

[MrAutoGrower]

RH has been 57-65%, Temps 70-80°F. Running drain to waste. Fertigating 3 times a day for 35 seconds, approx 1000ml per plant each cycle, getting 300-400ml runoff, 1000ppm in 1000ppm out was my readings this morning, PH has been between 5.8-6.3

Very odd man. Try giving her a dose of calmag and see if she improves.

I know when I had this issue twice, calmag made it worse

 

[MrAutoGrower]

Sorry mate just read your response again. Your ppms are sky high so they've too much fertiliser or other minerals etc.

Bring those ppms down to the 400 range or so. 1000 is too much in your run off.

Feed around 400 ppms daily to drain. Check the run off every day until it comes down. Gradually work your way up to around 500 and max out around 800 ppms tops. That's just my opinion based on my experience. Its tough to push them to over 1000ppm during flower. Sometimes you can get upto 1.2k during mid flower.

 

[Cooterjuice]

After doing research and alot of thinking. And smokin on some Chocolate Truffle I got recently. A light bulb kinda popped in my head. Plants was fine Friday morning. Can look at pics and see. Friday evening I cleaned there resevoir and decided to substitute the Big Bloom for Botanicare Pure Blend Tea. Saturday and Sunday is when the spots on her leaves started showing. So before last feeding last night I mixed a gallon of nutes and put 45mil extra big bloom to make up for the 3 gallons in the res. Added ro water to get ppm to 950, ph'd to 5.7. This morning the spots hasn't spread the way it looks. So hopefully that was it!!

 

[MrAutoGrower]

After doing research and alot of thinking. And smokin on some Chocolate Truffle I got recently. A light bulb kinda popped in my head. Plants was fine Friday morning. Can look at pics and see. Friday evening I cleaned there resevoir and decided to substitute the Big Bloom for Botanicare Pure Blend Tea. Saturday and Sunday is when the spots on her leaves started showing. So before last feeding last night I mixed a gallon of nutes and put 45mil extra big bloom to make up for the 3 gallons in the res. Added ro water to get ppm to 950, ph'd to 5.7. This morning the spots hasn't spread the way it looks. So hopefully that was it!!

Just make sure you aren't exceeding 500 ppms at their stage of life. Well from my experience when the ppms are 900+ that will poision the plants and cause a lockout. Which will then show different kinds of deficiencies. Most often those spots that look like calmag. Just my opinion mate. But those spots can continue to spread quite slowly. Best of luck bro

 

[Cooterjuice]

Just make sure you aren't exceeding 500 ppms at their stage of life. Well from my experience when the ppms are 900+ that will poision the plants and cause a lockout. Which will then show different kinds of deficiencies. Most often those spots that look like calmag. Just my opinion mate. But those spots can continue to spread quite slowly. Best of luck bro

Thanks man. I've been following the recommendations on the cocoforcannabis site. My half ro and half tap water is 150 ppm (500 scale). By there guideline 750ppm is the upper scale. So I add my 150 starting ppm to 750 and that puts me at 900. If I'm doing that correctly.

How To Set EC Targets - General EC Ranges for Cannabis in Coco - Coco For Cannabis - Plant Science

How strong should your nutrient solution be for cannabis? The strength should be determined by EC or PPM. We walk you through how to set EC/PPM targets.

www.cocoforcannabis.com

 

[Cooterjuice]

June 8th, Day 21. Had a little burn or deficiency over the weekend. Not sure which. Thoughts anyone? Whatever it was/is I think I corrected it. I cut Big Bloom out of my nutes Friday evening when I cleaned res. Added Botanica Pure Blend Tea in its place. Saturday after 3rd fertigation o noticed the spots in first pic. Sunday got worse. I added Big Bloom back Sunday evening b4 last fertigation of the day. Increased cal mag to 4mil per gallon. Dropped ppm to 750 (500 scale). Res temp did get a little high over weekend as well was up to 75°F. Ph has been 5.8-6.3. Been running half ro/dehumidifier water and tap @150ppm. Last pics is what they look like today! And look like I missed my top on the one… I’ll take a fim though!!

 

[Cooterjuice]

Day 23 Fast Buds Pineapple Express. Before and after training pics. This strain is fun to train. They respond so fast.

 

[Cooterjuice]

June 13th, Day 26. These ladies are growing like, well, weeds, lol. More and more LST. They are smelling amazing already!! Trying to keep them low cuz I expect to have height issues. Gals got a updated marine duty reservoir this week!! Shouldn't have temp issues anymore! Fertigating 3 times a day for 46 seconds. 800ppm in. 850-900 ppm runoff.

 

[Cooterjuice]

June 15th, Day 28. Training, training and more training.