New grower - identifying deficiencies / mistakes

sakasouffle

New Member
Hey guys. I'm a complete beginner to this and I think it shows on my two plants. Whilst I'm waiting for my pH pen to arrive I decided to write up a post here, hoping for some good insights from more experienced growers that will hopefully remedy this situation. Anyway, here's some info about my plants, my setup and their corresponding pictures:

- plant 1: Sensi seeds northern lights auto (day 1 of week 10)
- plant 2: Fast & furious nitrous northern lights auto (day 1 of week 10)

Soil: Plagron growmix in 8L (2.11 gal) textile pots

Feeding schedule:
- Foxfarm Big Bloom: 5ml / 1.5L (1 tsp / 0.4 gallon) with every other watering starting from week 4
- Metrop MR2 bloom solution: I needed to dilute this with water and use the diluted solution because the concentrated fertilizer was very VERY thick. I Made a 10% diluted solution by mixing 100ml of concentrate with 500ml of water and stored it in the fridge. Then I used 6ml of diluted solution / 1.5L water with every other watering, starting from week 6

Water: Like I said, I'm waiting for my pH pen so when I started noticing problems on week 6 or 7 I tried measuring and adjusting the pH of my water using pH strips and 5% apple vinegar (4ml / 1.5L). Out of the tap my water seemed to be around 7.4 pH, with very low chlorination and after adjustment it read around 6.5 but I can't be certain as these strips are hard to pinpoint exactly.

Training: Some light LST with leaf tucking to expose buds and occasionally plucking off a yellowing/dead leaf here and there.

Tent: 40cm x 40cm x 120cm

Light: HLG 100 V2 (3000K)

Light cycle:
- weeks 1 through 7 - 18/6
- weeks 8 through 9 - 16/8
- week 10 - 15/9
(The idea is to slowly give it less light in the final weeks to promote bud thickening and ripening)

Humidity: around 50% with 20 degrees Celsius (68F)

As you will see from the pictures, plant 2 is fairing far better than plant 1, and they seem to be exhibiting somewhat different signs of deficiencies (plant 1 has purple stems + rust, plant 2 has dry, curling leaf tips, etc...)

Anyway, sincerely thank you for taking your time to help a brother out and I hope I can save them in the final 3 - 4 weeks that they have left.

Now for the pictures:

PLANT 1:
1.0.jpg1.1.jpg1.2.jpg

PLANT 2
2.0.jpg2.1.jpg2.2.jpg2.3.jpg

BOTH:
both.jpg
 
Last edited:

insomnia65

Well-Known Member
Nice, I've read on here never to trust what the seller says regarding what they say about plants end date for harvest etc,I'm a newb but will be very interested to read what people say to your plant deficiencies, welcome to RUI.
 

kovidkough

Well-Known Member
without a pen you could be anywhere looks like various toxicities

I would not use apple cider vinegar for ph down as It won't stay low long
 

JustBlazin

Well-Known Member
you can use citric acid for ph down
its what i have used since i switched to organics,
im no expert but all your problem could be because your ph was off.
untill you know your ph is right then you will just be chasing your tail trying to figure out what deficiency you have
 
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