Results 1 to 6 of 6

Thread: Rusting Week 1 with LED's

  1. #1

    Join Date
    Dec 2011
    Posts
    25
    Thanks
    32
    Thanked 62 Times in 25 Posts

    Default Rusting Week 1 with LED's

    Hi, 2 of my 6 are affected by this. But I can see signs of the others starting (tiny rust spots up close) and kind of wrinkled leaves. This part is hard to explain, the leaves aren't drooping or clawing. They are just kinds creasing and folding up/down in random directions - i was thinking this part may be light stress? The leaves also feel pretty thick and leathery.

    I was also thinking the rust spots could be mag deficiency as I'm using LED's but I'm also thinking they are way too young for that? Am I wrong?


    Soil or hydro or coco: Soil

    Strain: 1 x Samsquanch, 1 x Blackberry Kush

    Photo or Auto: Auto's

    plant age: 1 week

    pot size: 11L & 12.5L (airpots)

    has it been repotted? and when?: No

    soil type: Canna terra Pro

    nutes or additives used and how often for soil: Only fed once so far, last feed I gave them 1ml per 1.25L (Growers Ark - Grow). But I only watered 500ml as I wanted the roots to go looking for it. The time I watered before that, I gave a full 1.25L of plain water with some root tonic in it. But it took a while to dry out as the plants are small, so that's why I gave 500ml this last time. But now I'm thinking maybe I've created some dry spots in my soil by not watering as much this time round? I didn't get any run off but I didn't mind as there wouldn't have been any build up of salts etc yet.

    Air temps (max min): 22-30 - I've got an oil heater in there, it's new for this LED grow so I've been playing with the thermostat a bit, incase temps had risen too high and dryed these affected plants out

    Res temps (max min): Unknown, left to de-chlorinate at room temp (in uncapped bottles)

    humidity: 50

    lighting type and wattage (hps, led, cfl): 2x LED 3000k Invisible Sun 300w driver, 301b diodes. (I started on 80w per panel, cranked them up to 140w and lowered the distance when i got some serious stretch from the seedlings. I've been playing with the height ever since but also dropped them to 120w last night incase this was some sort of light stress)

    Light schedule: 24h

    ph level: Not tested Yet

    anything else you think may be relevant!

    I don't think it's nute burn but I could be wrong. And I've checked the underside of the leaves for mites - unless they're microscopic and I can't see them, they ain't there!

  2. The Following 2 Users Say Thank You to stonerose For This Useful Post:

    hotshot (23-01-19), MonsterEnergy (22-01-19)

  3. #2

    Join Date
    Dec 2011
    Posts
    25
    Thanks
    32
    Thanked 62 Times in 25 Posts

    Default

    I can't edit the post. So here's an update.

    Ok so my hygrometer was directly on top of the soil when it read 50 (its just a small reptile one). So I put it on top of the LED panel for 5 minutes, to try and get a more ambient reading - and it dropped below 20!! I don't know which is the most accurate reading for my plants but I've gave them a quick foliar spray none the less

  4. The Following 2 Users Say Thank You to stonerose For This Useful Post:

    hotshot (23-01-19), MonsterEnergy (22-01-19)

  5. #3
    Bejeweled 2 Action Champion!
    Join Date
    Oct 2017
    Location
    Mare Nubium
    Posts
    4,644
    Thanks
    21,837
    Thanked 14,353 Times in 4,362 Posts

    Default

    1 week old so not mg deficiency especially in soil,
    probably light stress but can't say with just info, could be nutrient rich soil, over/under watering/humidity etc etc etc
    really need a visual reference mate




  6. The Following 2 Users Say Thank You to MonsterEnergy For This Useful Post:

    hotshot (23-01-19), stonerose (22-01-19)

  7. #4

    Join Date
    Dec 2011
    Posts
    25
    Thanks
    32
    Thanked 62 Times in 25 Posts

    Default

    Alright, these are the best I could get. My camera really didn't want to focus

    Click image for larger version. 

Name:	IMG_4538.jpg 
Views:	15 
Size:	154.4 KB 
ID:	369388
    Click image for larger version. 

Name:	IMG_4528.jpg 
Views:	15 
Size:	107.9 KB 
ID:	369389

  8. The Following 2 Users Say Thank You to stonerose For This Useful Post:

    hotshot (23-01-19), MonsterEnergy (22-01-19)

  9. #5
    Bejeweled 2 Action Champion!
    Join Date
    Oct 2017
    Location
    Mare Nubium
    Posts
    4,644
    Thanks
    21,837
    Thanked 14,353 Times in 4,362 Posts

    Default

    that's fine mate, soils a little strong for them at such a young age, light was a little close/strong also
    they'll grow fine as they establish more roots and harden to such direct light mate

  10. The Following 3 Users Say Thank You to MonsterEnergy For This Useful Post:

    hotshot (23-01-19), joker_the_smoker (22-01-19), stonerose (22-01-19)

  11. #6

    Join Date
    Dec 2011
    Posts
    25
    Thanks
    32
    Thanked 62 Times in 25 Posts

    Default

    Alright thanks man. It's just not a problem I've seen before when vegging under MH. So I thought I'd better ask before it goes too far!

  12. The Following User Says Thank You to stonerose For This Useful Post:

    hotshot (23-01-19)

Tags for this Thread

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  


Bonza Seeds - Over 2000 Strains!     |     bongs - herbtools     |     25% off Cannabis Seeds at Dr Chronic     |     buy a bong from Herb Tools     |     GYO Seedbank     |     Buy Cannabis Seeds     |     www.alibongocannabisseeds.co.uk

THCtalk.com Disclaimer - You must be over 18 years old to view/use this site .THCtalk.com does not encourage growing Cannabis or possessing Cannabis. Learning how to grow Cannabis instructions should be for educational purposes only. All Information contained in this web site is for: Historical reference, Scientific reference and Educational purposes only. Visitors to this website are advised against breaking the law as It is illegal to smoke, grow, or possess cannabis in the UK