Auto flower Purple Kush week 4 of flower bottom-up yellowing HELP!!

What is your experience level? (first timer, novice, experienced...)
Novice

Your Equipment:
.1) Type and wattage of lights. (MH, HPS, CFL's, tube fluorescents, LED's)
Omega 315w cdm pro+ digital DiMable x2
.2) Distance from tops?
50cm
.3) Reflector type? (cool tube set-up, bat wing, enclosed reflector, bare bulb...)
Wing reflector
.4) Is there a consistent fresh air supply?
Yes
.5) Do you have an exhaust fan and a circulation fan?
Have 6’’ extractor 1 large oscillating fan & 1 clip on fans

.6) What are the bulb wattages, kelvin ratings, and schedule?
315w x2 and 18hrs on


Your medium:
.7) Specific brand and type of soil, (coco, peat based soilless...) and anything you've added to it.

Canna Coco


. Size of container.
15l


Your nutrients and water:
.9) Source of water. (tap or filtered) What's it's ph?
Tap and ph is between 5,6 and 6.0
10) Method of checking water ph. (ph pen, test strips, aquarium test kit...)
Ph pen
11) Method of adjusting water ph. (phosphoric acid, white vinegar, hydrated lime, PH Up...)
Phosphoric acid
12) Specific brand and N-P-K ratio for each bottle. List dosages (quantity per gallon) and current feeding schedule.

Ionic bloom 1.5 : 1.4 ; 3.1. 7ml per litre
Plant magic root stim 0.14’; 0.01; 0.12 flower stage 2.5ml per litre

Atami Bloom Bastic pk 14-15
Content phosphorus pentoxide 14% (6.10% soluble in water)
Potassium oxide 14.50%(12.03% soluble In water)
Magnesium oxide 0.37% (0.22% soluble in water)
Sulphur trioxide 0.45% (0.18%soluble in water)
Iron 0.950%





13) How often are you watering between feedings, and how much per watering?
2-3 litres. Every 2-3 days give or take depends on if pots are dry or not
14) Any additives or tea's? (Superthrive, CalMag, molasses, Mother's Earth...)
No
15) Are your ph levels stable, or do they fluctuate?
5.7 - 6.0
16) What is your ingoing water's ph? ...your runoff ph?
Ph is between 5,9 and run of from that feed was 7.7 on one plant then 7.4 on the other

17) Do you foliar feed? If so, with what, how often, and at what time do you spray?
No
Your growroom:
1 Indoors or outdoors?
Indoors
19) What size of closet, room or hut?
Tent of 1.2x1.2x 2m
20) What are the temps and humidity levels while lights are on? ...With lights off?
Lights on at top of plants is 26c pot level is 20 and lights off 18
21) Have you seen signs of insects in the growroom?
No

Your strain:
22) What strain are you growing? (Indica dominate or Sativa dom?)
Indica
23) Is this an photoperiod strain?
Auto flower
24) How old is the plant? 4 weeks flower
25) In what life-cycle is it? Vegetative, pre-flowering, flowering, rippening?
Flower
26) From seeds or clones?
Seeds


I did have high temps of 34c when I had 2 600w hps in there.
I have since changed too 2x omega 315w cdm pro digital dimable (2days ago)
Temps at pot height are 20c
Plant tops is 26c

First pictures is Purple Kush auto flower which is about 10 days in front of the other plant
The one that is 10 days behind just seems too not smell as much and feels really dry not sticky at all like the other one. Any ideas ?


I think I have covered what you guys are going to ask if not please let me know! Appreciate any help given kind regards!

Last picture is of a Purple berry Kush fem photo in same room as others. But obviously the ones in veg have veg nutes and others have bloom nutes but looks overall healthier than the autos

Couple of things stick out, PH is low for coco. Mg does not absorb well <6.0, I believe ~6.2 would be better. I also think you might be watering too frequently; autos hate to be overwatered. Are your pots light when you feed them? Last pic really looks like Mg deficiency with inter-venal fading on the lower leaves.

StinkyBuds said:

What is your experience level? (first timer, novice, experienced...)
Novice

Your Equipment:
.1) Type and wattage of lights. (MH, HPS, CFL's, tube fluorescents, LED's)
Omega 315w cdm pro+ digital DiMable x2
.2) Distance from tops?
50cm
.3) Reflector type? (cool tube set-up, bat wing, enclosed reflector, bare bulb...)
Wing reflector
.4) Is there a consistent fresh air supply?
Yes
.5) Do you have an exhaust fan and a circulation fan?
Have 6’’ extractor 1 large oscillating fan & 1 clip on fans

.6) What are the bulb wattages, kelvin ratings, and schedule?
315w x2 and 18hrs on


Your medium:
.7) Specific brand and type of soil, (coco, peat based soilless...) and anything you've added to it.

Canna Coco


. Size of container.
15l


Your nutrients and water:
.9) Source of water. (tap or filtered) What's it's ph?
Tap and ph is between 5,6 and 6.0
10) Method of checking water ph. (ph pen, test strips, aquarium test kit...)
Ph pen
11) Method of adjusting water ph. (phosphoric acid, white vinegar, hydrated lime, PH Up...)
Phosphoric acid
12) Specific brand and N-P-K ratio for each bottle. List dosages (quantity per gallon) and current feeding schedule.

Ionic bloom 1.5 : 1.4 ; 3.1. 7ml per litre
Plant magic root stim 0.14’; 0.01; 0.12 flower stage 2.5ml per litre

Atami Bloom Bastic pk 14-15
Content phosphorus pentoxide 14% (6.10% soluble in water)
Potassium oxide 14.50%(12.03% soluble In water)
Magnesium oxide 0.37% (0.22% soluble in water)
Sulphur trioxide 0.45% (0.18%soluble in water)
Iron 0.950%





13) How often are you watering between feedings, and how much per watering?
2-3 litres. Every 2-3 days give or take depends on if pots are dry or not
14) Any additives or tea's? (Superthrive, CalMag, molasses, Mother's Earth...)
No
15) Are your ph levels stable, or do they fluctuate?
5.7 - 6.0
16) What is your ingoing water's ph? ...your runoff ph?
Ph is between 5,9 and run of from that feed was 7.7 on one plant then 7.4 on the other

17) Do you foliar feed? If so, with what, how often, and at what time do you spray?
No
Your growroom:
1 Indoors or outdoors?
Indoors
19) What size of closet, room or hut?
Tent of 1.2x1.2x 2m
20) What are the temps and humidity levels while lights are on? ...With lights off?
Lights on at top of plants is 26c pot level is 20 and lights off 18
21) Have you seen signs of insects in the growroom?
No

Your strain:
22) What strain are you growing? (Indica dominate or Sativa dom?)
Indica
23) Is this an photoperiod strain?
Auto flower
24) How old is the plant? 4 weeks flower
25) In what life-cycle is it? Vegetative, pre-flowering, flowering, rippening?
Flower
26) From seeds or clones?
Seeds


I did have high temps of 34c when I had 2 600w hps in there.
I have since changed too 2x omega 315w cdm pro digital dimable (2days ago)
Temps at pot height are 20c
Plant tops is 26c

First pictures is Purple Kush auto flower which is about 10 days in front of the other plant
The one that is 10 days behind just seems too not smell as much and feels really dry not sticky at all like the other one. Any ideas ?


I think I have covered what you guys are going to ask if not please let me know! Appreciate any help given kind regards!

Click to expand...

Looks like you have a few issues, heat stressed, ph outta wack, nutrient uptake problems. Do a runoff test

Last plant looks alright

Done a runoff test ph was 7.4 should I flush it do you think ?

buyyouabeer said:

Couple of things stick out, PH is low for coco. Mg does not absorb well <6.0, I believe ~6.2 would be better. I also think you might be watering too frequently; autos hate to be overwatered. Are your pots light when you feed them? Last pic really looks like Mg deficiency with inter-venal fading on the lower leaves.

Click to expand...

I will higher the ph to 6.2 next feed then? I always wait until they are dry before feeds also picking them up too feel weight..

StinkyBuds said:

I will higher the ph to 6.2 next feed then? I always wait until they are dry before feeds also picking them up too feel weight..

Click to expand...

No don't ph at 6.2 or your never lowering it from 7.4, i would flush with about a gallon or 2 of 5.5 ph plain water and then right after run a good gallon of 5.7 with a good feed

I flushed with 2 gallons of ph water at 5.5 no change in the run off still 7.4 flushed another 2 gallons and was getting 7.8 ph any ideas ?