Yellowing seedling leafs?

W

Weelock

Member
Hi,
Just after some help with my seedlings,

some background,

planted on 26th oct as seeds,
Strain is elev8 gorilla glue and one made of honor I don’t remember the brand without looking.

planted in baby rootz
Under a hlg 65 at 12inches
Watering only when dry to first knuckle with distilled water.

temp and humidity I keep around 74-80f with 55-65% humidity.

thanks for any help you guys can give, this forum has helped me ALOT.
 

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W

Weelock

Member
Jumpin Jimmy said:
Your soil is maybe the issue. Maybe staying too wet. Them are too little to need food so it’s not an underfert thing.
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Thanks, I wait until soil is dry before I water and then I only water enough to make soil damp. Then wait until dry again, doing this to avoid over watering.
 
Millo

Millo

Well-Known Member
That could be light burn... Is the light at 100%? If so try either dimming it down to 60-70% or lift it up to about 30 inches and see how it goes
 
HafaAdaiGrower

HafaAdaiGrower

Member
Weelock said:
Anyone else have any ideas?
Thanks in advance. I can’t believe it’s nutritional with them being this small?
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It could be as simple as what @Jumpin Jimmy said about overwatering and maybe the soil. I would also like to expand on what @Jumpin Jimmy said and possibly add light stress maybe?? what's your light specs? Is the pic I attached the soil ur using just wanting to know to do more research and provide more detail for others to possibly come up with other possible troubleshooting techniques. Based off of the pics some seedlings look a bit overwatered. If that's the case just monitor the soil like you said let it dry out and water right around the base of the seedlings like you plan.
Hopefully more people will check the post and add to the thread. I would also suggest checking out other forums similar to the questions you have about your grow and see what's in the threads. This site has a plethora of knowledge made available by other more experienced growers for newbies like us. I wish you the best and a great future harvest.
Thanks for sharing!
 

Attachments

W

Weelock

Member
HafaAdaiGrower said:
It could be as simple as what @Jumpin Jimmy said about overwatering and maybe the soil. I would also like to expand on what @Jumpin Jimmy said and possibly add light stress maybe?? what's your light specs? Is the pic I attached the soil ur using just wanting to know to do more research and provide more detail for others to possibly come up with other possible troubleshooting techniques. Based off of the pics some seedlings look a bit overwatered. If that's the case just monitor the soil like you said let it dry out and water right around the base of the seedlings like you plan.
Hopefully more people will check the post and add to the thread. I would also suggest checking out other forums similar to the questions you have about your grow and see what's in the threads. This site has a plethora of knowledge made available by other more experienced growers for newbies like us. I wish you the best and a great future harvest.
Thanks for sharing!
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I really appreciate it.

The light is in my first post it’s a HLG65 it’s 65watts at the wall, I did lift it about 4 inches this morning.

I have a hlg 550 when they get bigger.

yes that’s the soil I’m using.

I could be overwatering I give them about a 1/4 cup at the most when they are dry to my first knuckle.
 
GenitikP

GenitikP

Member
I’m not the most experienced, but when this was happening to me, it was nutrient burn, I use a 125w for my seedlings and have them 12inchs away and I’ve never had a problem with tip burn or light stress‍:eyesmoke:
 
Minbebistillmax

Minbebistillmax

Active Member
have you looked up what the your strain needs, i meen in temp and humidity in a seedling stage, veg and bloom?.
Mabye your strain needs more of something then the other seeds.
im longe from a expert grower but i think your lights are to close, i have a star 60 LED and i have it like 50cm from the tip of the plant.
But still im not a expert just trying to help whit some ideas
 
W

Weelock

Member
Minbebistillmax said:
have you looked up what the your strain needs, i meen in temp and humidity in a seedling stage, veg and bloom?.
Mabye your strain needs more of something then the other seeds.
im longe from a expert grower but i think your lights are to close, i have a star 60 LED and i have it like 50cm from the tip of the plant.
But still im not a expert just trying to help whit some ideas
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Plants were stretching at first so I lowered the light a week or so back. I’ve now raised the light up. I’m keeping the temps and everything within what the strain asks for. But two different strains are doing the same thing. Not quite sure what it is.

It may be overwatering but I haven’t been giving them to much water from what I’ve been reading.
 
GenitikP

GenitikP

Member
Weelock said:
Plants were stretching at first so I lowered the light a week or so back. I’ve now raised the light up. I’m keeping the temps and everything within what the strain asks for. But two different strains are doing the same thing. Not quite sure what it is.

It may be overwatering but I haven’t been giving them to much water from what I’ve been reading.
Click to expand...
Do you have good ventilation? Filter the air?
 
HydroKid239

HydroKid239

Well-Known Member
I think backing the light off to around 18” would help with the yellowing tips. It looks like bleaching more than a nute burn. The plant with bigger leaves is taking it better because it has more leaves to soak up the light.
As far as watering I would go by weight of the pots. Lift them when they are bone dry.. then look for that weight again when thinking about watering. I’d water til water ran out of the bottom of the pots. (Hopefully there is drainage holes for the run off to escape) and wait til they were light enough to water again. Those pots need water at least Once every 24 hrs. I water mine every morning around 3 hours into the lights on cycle.
 
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