Early Veg leaf discolouration - light edges.

[Tms]

It’s mag deficiency from your light interveinal discoloration.
The leaf edges and tips are turning,
You have the light to hot and possibly the light is too close as well or both.
Man I know you gonna say but the ppfd is in acceptable ranges.



It’s obviously not happy.
Raise your light, or turn it down or both.

Here’s some of my plants that suffer from the same thing. It’s really hard to avoid it in some cultivars because they’re extremely sensitive from the jump. What it means is is your plant needs an opportunity to harden off to the light so whenever you change your output, you need to go ahead and do it in small increments so the plant can harden off to the light instead of being shocked by 20 and 30% output percentage jumps.

Thanks Capt.

The light is 300w at 25% 36inches from canopy. I actually can’t lower the intensity or higher it any further. It at is lowest intensity and maximum height.

Leaf temperature is at 23.4 measured with infrared thermometer.

 

[Tms]

Thanks Capt.

The light is 300w at 25% 36inches from canopy. I actually can’t lower the intensity or higher it any further. It at is lowest intensity and maximum height.

Leaf temperature is at 23.4 measured with infrared thermometer.

And tent temperature raises till 27.5 then my extractor kicks in and brings it down to 25.5. Humidity is at 65%.

 

[Captspaulding]

Thanks Capt.

The light is 300w at 25% 36inches from canopy. I actually can’t lower the intensity or higher it any further. It at is lowest intensity and maximum height.

Leaf temperature is at 23.4 measured with infrared thermometer.

Well, you could always hang the lamp with out the ascender, right up to the very top and buy you a few inches maybe 6 or so, do you have other larger plants in your tent with that plant? That’s being hit with mag if so, hide it behind some of the larger plants and put it on the perimeter outside of the hotspot of the lamp or you can always just open the door and set that particular plant right outside of the door with the tent open so the light can still do its job in the plant can still eat.

 

[Captspaulding]

And tent temperature raises till 27.5 then my extractor kicks in and brings it down to 25.5. Humidity is at 65%.

That’s solid.

 

[m8ty]

Looks like Over watering from here...

 

[Captspaulding]

It’s mag deficiency from your light interveinal discoloration.
The leaf edges and tips are turning,
You have the light to hot and possibly the light is too close as well or both.
Man I know you gonna say but the ppfd is in acceptable ranges.



It’s obviously not happy.
Raise your light, or turn it down or both.

Here’s some of my plants that suffer from the same thing. It’s really hard to avoid it in some cultivars because they’re extremely sensitive from the jump. What it means is is your plant needs an opportunity to harden off to the light so whenever you change your output, you need to go ahead and do it in small increments so the plant can harden off to the light instead of being shocked by 20 and 30% output percentage jumps.

Note, pertaining to output. I would suggest in the future when you go to click that thing up to 50% that you keep that light raised as much as possible. That way you’re not bombarding the plants and not giving them a chance to harden off to that new output I would say after about a week, then you could start ticking the lamp down a little bit towards them. Bit by bit.

 

[Captspaulding]

Looks like Over watering from here...

A little bit sure.
You don’t see the mag def?

 

[Tms]

Looks like Over watering from here...

Up potted and watered through lightly on Sunday, soil dried out and then watered again yesterday. I tend to let them dry out fully before watering again but I also got given this plant from a friend of mine just before it needed up potting. Not sure what his watering pattern was like beforehand.

Well, you could always hang the lamp with out the ascender, right up to the very top and buy you a few inches maybe 6 or so, do you have other larger plants in your tent with that plant? That’s being hit with mag if so, hide it behind some of the larger plants and put it on the perimeter outside of the hotspot of the lamp or you can always just open the door and set that particular plant right outside of the door with the tent open so the light can still do its job in the plant can still eat.

I can raise it up maybe another 6 inches as you say by strapping it directly to the poles yeah. Unfortunately can’t do much else other then that, I’m in a very tight closet space, my tent is literally about an inch or so smaller then the closet and I won’t be able to leave the plant out of the tent. This is also my only plant that I’ve got going at the moment so can’t shade it behind another.

 

[7munkee]

Trust the Cap. He helped me through the same problem a year or so ago. Everyone was telling me I had deficiencies, ph problems, or some such thing. Cap comes along and told the same thing he told you...raise the light and give them a shot of mag. Within a few days it was fixed.

I flower out my plants at around 35 DLI which is about 800 ppfd over 12 hours. I reach this SLOWLY...over a period of 3 weeks or so. Cannabis can take extremely high light levels, but it has to be done incrementally.

Also, If you want 40 or more DLI your gonna need co2.

 

[Tms]

Note, pertaining to output. I would suggest in the future when you go to click that thing up to 50% that you keep that light raised as much as possible. That way you’re not bombarding the plants and not giving them a chance to harden off to that new output I would say after about a week, then you could start ticking the lamp down a little bit towards them. Bit by bit.

Will definitely do this. With the current state of the plant and the light needing to be raised even further. At what point would you recommend a switch to 50%?

Just because with my light being strapped to the pole, not sure how I can slowly bring up the ppfd before the 50% switch. I guess the plant will grow up towards the light and therefore get more light overtime but will that be enough?

 

[Tms]

I think my light is just too much for the space I’ve got haha. Time to downgrade maybe

 

[Captspaulding]

Will definitely do this. With the current state of the plant and the light needing to be raised even further. At what point would you recommend a switch to 50%?

Just because with my light being strapped to the pole, not sure how I can slowly bring up the ppfd before the 50% switch. I guess the plant will grow up towards the light and therefore get more light overtime but will that be enough?

Boost the pots on something it’s what I do all the time instead of dropping my equipment.
This way gets low flyers up with the rest for an even canopy as well

 

[Tms]

Boost the pots on something it’s what I do all the time instead of dropping my equipment.
This way gets low flyers up with the rest for an even canopy as well

Duh ! How did I not think to do that. Now I feel stupid

 

[Captspaulding]

I think my light is just too much for the space I’ve got haha. Time to downgrade maybe

I’ll tell you what it’s definitely a bummer when I see these lights that only have preset outputs. That’s seriously kind of it a detractor for me because every little bit of power up and down matters sometimes.
I have a spider Farmer 3000 in my 2 x 4 tent right now and you know I’ve got one or two of these little guys showing some of the mag and stuff too currently sometimes it’s just a pain in the butt other times you know you just turn down the lamps there’s presets drive me crazy dude if anything I would just make sure that you have something that can actually actuate from 0 to 100% Without presets.

 

[Captspaulding]

Duh ! How did I not think to do that. Now I feel stupid

You ain’t stupid bro it’s something that’s very easy to overlook. You know when we’re growing this shit we’re looking at everything all the time anyway and we could suffer from information overload from time to time. We’re only human right bro so you know no biggie. It’s just a good method to use, I hope it helps you out in the long run

 

[m8ty]

.. but I also got given this plant from a friend of mine just before it needed up potting. Not sure what his watering pattern was like beforehand.

You reckon the plants are nearing 8 weeks old?

 

[Tms]

You ain’t stupid bro it’s something that’s very easy to overlook. You know when we’re growing this shit we’re looking at everything all the time anyway and we could suffer from information overload from time to time. We’re only human right bro so you know no biggie. It’s just a good method to use, I hope it helps you out in the long run

Appreciate it Capt. Thanks for the fast replies and support. We are all human afterall .

Plan of action:

Give a boost of cal-mag or a light 1/4 1/2 veg feed.

Strap my light as high as it can possibly go.

Let the plant get used to the current ppfd and light intensity (would you say this could take a few days maybe?)

Slowly raise the plant up, little by little everyday.

When getting too close to the light drop the plant down and switch the light to 50%.

Continue the cycle into flower before dropping down the ppfd a bit close to end.

You reckon the plants are nearing 8 weeks old?

Had a chat with him, they was germed in soil on 25th August, poked through a couple days later so they’re about 3 and half to 4 weeks old I would say.

 

[jamesmessenger1]

It’s mag deficiency from your light interveinal discoloration.
The leaf edges and tips are turning,
You have the light to hot and possibly the light is too close as well or both.
Man I know you gonna say but the ppfd is in acceptable ranges.



It’s obviously not happy.
Raise your light, or turn it down or both.

Here’s some of my plants that suffer from the same thing. It’s really hard to avoid it in some cultivars because they’re extremely sensitive from the jump. What it means is is your plant needs an opportunity to harden off to the light so whenever you change your output, you need to go ahead and do it in small increments so the plant can harden off to the light instead of being shocked by 20 and 30% output percentage jumps.

This is a really great point.
Often we jump to a deficiency with adding minerals we think we need, and in reality…MOST of the time…they’re in there, but the roots can get to them for some reason. Could be the actual mineral element size because your crappy nutes werent micronized or maybe you added too much of another mineral that’s locking out different minerals lol.

 

[Captspaulding]

Appreciate it Capt. Thanks for the fast replies and support. We are all human afterall .

Plan of action:

Give a boost of cal-mag or a light 1/4 1/2 veg feed.

Strap my light as high as it can possibly go.

Let the plant get used to the current ppfd and light intensity (would you say this could take a few days maybe?)

Slowly raise the plant up, little by little everyday.

When getting too close to the light drop the plant down and switch the light to 50%.

Continue the cycle into flower before dropping down the ppfd a bit close to end.





Had a chat with him, they was germed in soil on 25th August, poked through a couple days later so they’re about 3 and half to 4 weeks old I would say.

Great plan.
But.
As far as your boosting plan, I would do that but every third day you know not every single day would I be putting a closer and closer to the light and I’ll do it every third day.
Otherwise. You nailed it.

 

[Captspaulding]

This is a really great point.
Often we jump to a deficiency with adding minerals we think we need, and in reality…MOST of the time…they’re in there, but the roots can get to them for some reason. Could be the actual mineral element size because your crappy nutes werent micronized or maybe you added too much of another mineral that’s locking out different minerals lol.

It’s almost criminal how much the nutrient dominos fall that way. It drives me crazy when I see a well intentioned grower, (bc they care a lot) story throwing all the nutrients at it created a surplus of madness in The root zone,
Which 9/10 the medium is over saturated now too. So it ends up being a double lockout from mineral overdose and zero air in the medium suffocating the root, that generally when you see some one start an auto In a 5 gallon, and end up deficient the moment they hit veg because there is so much water in the medium. That the roots can’t penetrate the saturated bottom 3/4 of the pot and eat, I can’t tell you how many times I’ve seen people chop, and them got to remove the root ball, and whoa looky here, that’s really wet dirt, with zero roots!

Not to mention the plants size never exponentially increased, not even I. The stretch.


It grinds my gears for the situation.
Not mad at a proactive grower
It’s more about the “throw everything at the wall” information overloads.
A lot of the time alot of the deficiencies look like other deficiencies or combinations of them, but stage of growth micro climate and general acumen all dictate the game .


I hate tailspins.
Nowadays it’s crazy how alot of the time, alls that needs to I happen is a output adjustment On a lamp