Could this be overwatering or nitrogen toxicity?

[Skurge]

Strain - Dedoverde Haze (60% Sativa 20% Indica 20% Ruderalis)

24 Hour Lighting

Temps are 79-81F (low 77 high 84 but very rare)

Using Pro Mix HP CC with 12-13% perlite added (mix has around 13-18% perlite in it already, 30-33% coco and the rest is peat, ratios could be slightly off). 3 Gallon smart pots, from my understanding over watering should be a pretty hard thing to do with this pro mix and smart pots.

Currently under a 400w MH (cooltube), 13-15" from the tops, according to my "back of the hand" test, could get them as close as 8-10" (and my skin is really sensitive to light).

They showed sex around day 15-16 (never noticed the preflowers, they already had pistils coming out by the time I took a close look at the nodes, some 1/2-3/4" long already)

After watering just the tips will droop (almost immediately, within 5 minutes), and are a slightly darker shade of green. They seem to perk back up within 4-6 hours or less.

On day 18, each lady is 5-7" tall with 4-5 sets of true leaves (not counting the new ones coming in). Started 1/4 feeding of Sensi Grow A+B and Voodoo Juice around day 10 (using Tang's Feeding Schedule as a guideline), started carboload on day 15.

For the past week or so they've been getting 500 ml every 30-36 hours, today I gave them 1L (500 ml, waited 45 mins or so and gave another 500 ml). Feeding with every watering. My water is around 65-70F (10-15 lower than my grow environment).

The droop is most sever in my smallest and biggest (5" and 7"), almost non existent in the other two. It also is most severe in the top couple sets of leaves, the lowest growth usually doesnt droop much if at all.

Also, the top most part of the stem on my biggest seems to be slightly bent over (last pic). This bend just recently occured, that's the same plant in the first picture and the stem is completely upright. Just checked again (about 15 minutes later), and it already corrected itself and is upright again.

From what I've been reading Sativa dominant strains are more sensitive to nitrogen.

My guess is they're fine, but it's my first grow and every little thing makes me worry that I may have done something wrong.

Any help is much appreciated

 

[blue]

Nothing to worry about here!

The plant looks nice and healthy! There are some time lapse vids on the dutch passion website and the girls will naturally droop a little, then pickup and grow and repeat.

The bendyness at the top will sort itstelf out too, it's just reaching for the light

Looking good in the garden

Blue ^_^

 

[Skurge]

Nothing to worry about here!

The plant looks nice and healthy! There are some time lapse vids on the dutch passion website and the girls will naturally droop a little, then pickup and grow and repeat.

The bendyness at the top will sort itstelf out too, it's just reaching for the light

Looking good in the garden

Blue ^_^

Thanks for the quick reply, puts my mind at ease. Everything that I was reading said that tips drooping meant over watering, nitrogen toxicity, or water being too cold.

 

[blue]

No worries, here's some golden nuggets for you to help in future

N-Tox the leaves will claw down (all tips) and the leaves will be a darker green that what you have.

Over water looks just like underwatering, you know if it happens because the leaves are droopy - but heavy looking (really down) and the soil it wet (wont be wet if underwatered and droopy )

Water too cold - I never think about this, but i keep my water gassing off in the same room as the grow so it's room temp!

I've N-toxed a plant before, i'll see if i can get you a piccy

 

[blue]

Back left for N-tox - see the top tips

The colour is too difficult to make out under LED, but it's dark green-ish (they were all a bit dark green as i was adding a brand of cal-mag that was high in N. (on top of my base nutes) - Live and learn)

 

[GoAuto6]

I see a little heat stress in the leaves? see the way the serrations are curling up? I'd move my light up a coupl inches and see if that helps.

 

[Skurge]

I see a little heat stress in the leaves? see the way the serrations are curling up? I'd move my light up a coupl inches and see if that helps.

Yeah I noticed that too, but when I place my hand 2-3" above the tops of the plants I can leave it there for several minutes with no discomfort. My 400w MH is cooltubed and 14-16" from the tops, don't want to put it much further away than that. Most of that heat stress is on the lower sets of fan leaves, from when they couldn't handle the MH as well I think... Most of the new growth isn't showing any sign of heat stress, and if they are it's very minor.