Is this a Deficiency or burn?

ArittGrow · Jul 1, 2025

Is this signs of burning from my light? Or do I need to start feeding?
Environment
Light is a SpiderFarmer g3000 300W at about 20inches from top leaf and 40% brightness.
Medium: HPCC promix AGTIV reach.
Day 21 of popping from medium
Watered with RO water PHed to 5.8-6.0 with half of recommended emerald harvest 3 part system micro, grow and bloom, with half strength of there CalMag solution as well. first water got it pretty wet but no runoff from 3 gallon fabric pot. Watered again with same solution around day 8. And have watered with plain RO water PHed to 6.0-6.4 since those first 2. Watered maybe a total of 6 cups of water from day 12 to now. Trying to let that soil dry up a little since it was so wet from the beginning. Temp is between 70F at night and about 80F during the day, humidity between 57% during day and about 80% at night.

Eledin · Jul 1, 2025

Were the seeds old by any chance? Where did you get them?

ArittGrow · Jul 1, 2025

Eledin said:
Were the seeds old by any chance? Where did you get them?

Definitely old, all the ones I’ve started so far were acquired over time. At least over the last 5 years. Literally came out of weed we were using to smoke. So not sure on genetics or if there even worth growing, but being my first time figured it wouldn’t hurt to get a hang of it before spending money on good seeds.

Eledin · Jul 1, 2025

Thats what I thought, thats the problem then. Old seeds that were not properly stored will get you plants with deformities (which you can clearly see in the leaves), sometimes "albinism" and stunted growth. They will not grow as fast as new or properly stored seeds and theyre not as pretty. As for the harvest, its a lottery but they usually dont give as good of a harvest.

Eledin · Jul 1, 2025

If you wanna keep seeds for longer than a year you need to store them in the fridge, air tight and sealed so no moisture ruins them.

Eledin · Jul 1, 2025

Also if you collected the seeds from buds, theyre more likely to herm than feminized seeds. Seeds from buds usually come from pollen of one or more hermies from the harvest. Males, if any, are isolated or discarded.

Eledin · Jul 1, 2025

If youre gonna keep them avoid toping them and if you are gonna defoliate keep it to a minimum as they get easily stunted. Its better to let them grow without any kind of training or they will take forever to finish and give small buds.

ArittGrow · Jul 1, 2025

Eledin said:
If you wanna keep seeds for longer than a year you need to store them in the fridge, air tight and sealed so no moisture ruins them

Awesome, I kinda figured it was a slight gamble. I kept them in an “airtight” container (preroll container), wouldn’t say cold at all but definitely as sealed as those things are, But would you say the slight yellowing on tips and curling is from the deformity or something else?

Eledin · Jul 1, 2025

ArittGrow said:
Awesome, I kinda figured it was a slight gamble. I kept them in an “airtight” container (preroll container), wouldn’t say cold at all but definitely as sealed as those things are, But would you say the slight yellowing on tips and curling is from the deformity or something else?

I would say its likely the seed being goofy. It doesnt look hungry. I can see some slight yellowing on the tips which suggests that either theyre having too much light or they had a tiny bit too many nutes. I can also see 2 brown marks. Again, Id say its the seed being goofy but also you need to get your ph to 6,2 for veg and 6,5 for flower. Dont go below 6,2 as it messes with the nutrient uptake because youre using a soil that has peat in it. If it were only coco it would be different.

ArittGrow · Jul 1, 2025

Eledin said:
If youre gonna keep them avoid toping them and if you are gonna defoliate keep it to a minimum as they get easily stunted. It’s better to let them grow without any kind of training or they will take forever to finish and give small buds.

Thank you greatly, this was my next question actually would you do any form of training? This is my first time growing and I have a couple slightly more experienced friends that grow and they all said to top it soon and start tying them down but being my first time wasn’t to sure if I should or when. And knowing my seeds are older and possibly not female wasn’t to sure on this part.

ArittGrow · Jul 1, 2025

Eledin said:
I would say its likely the seed being goofy. It doesnt look hungry. I can see some slight yellowing on the tips which suggests that either theyre having too much light or they had a tiny bit too many nutes. I can also see 2 brown marks. Again, Id say its the seed being goofy but also you need to get your ph to 6,2 for veg and 6,5 for flower. Dont go below 6,2 as it messes with the nutrient uptake because youre using a soil that has peat in it. If it were only coco it would be different.

Thank you greatly, Im gonna water tonight and I’ll make sure to PH accordingly. Would you water until runoff? I’ve heard a lot of back and forth about this, I never have and prefer the light watering more frequently, but being the medium I’m using and it not being like Coco not sure if this is necessary or needed.

Eledin · Jul 1, 2025

If they came from a bud, theyre still most likely feminized its just that theyre more likely to herm. Be on the look out for bananas if thats the case. Toping would be definetely a no for me with those plants but maybe you can tie down some branches, that doesnt stress them nearly as much. Cutting stuff does.

Eledin · Jul 1, 2025

ArittGrow said:
Thank you greatly, Im gonna water tonight and I’ll make sure to PH accordingly. Would you water until runoff? I’ve heard a lot of back and forth about this, I never have and prefer the light watering more frequently, but being the medium I’m using and it not being like Coco not sure if this is necessary or needed.

I dont always do it but is good to do it from time to time and water slowly. Mostly so you make sure you dont have dry pockets of soil inside the pot. Many times when I water a tiny bit of runoff comes out but thats fine, its reabsorved quickly, but I dont deliberately water to 10% runoff all the time. Sometimes people have way too many plants to bother watering slowly so watering until 10% runoff is to make sure all the soil is moist.

Eledin · Jul 1, 2025

Also textile pots are way better than plastic pots but if you water fast the water just comes from the sides and its a pain in the ass, but its worth it in my opinion.

ArittGrow · Jul 1, 2025

Eledin said:
If they came from a bud, theyre still most likely feminized its just that theyre more likely to herm. Be on the look out for bananas if thats the case. Toping would be definetely a no for me with those plants but maybe you can tie down some branches, that doesnt stress them nearly as much. Cutting stuff does.

I appreciate all the help and sorry for the million questions. I’m definitely gonna stick to the letting them do their own thing method for now, Especially being my first grow. And I finally have some plant risers coming today so there not flat on the plates, and I’ll give them a good watering tonight. Again thank you very much. I enjoy growing so far and it’s definitely nice having a good support system when it comes to what to improve on.

Eledin · Jul 1, 2025

I enjoy doing it as I have a lot of free time no worries hahaha. Also I run old seeds sometimes, currently runing some old autos, and this is always to be expected from some of them. Its gonna be a good first grow experience, you will be able to focus on keeping good parameters instead of too many things at once. Some useful tips:
-If the plant starts yellowing from bottom to top, without skyping nodes, its hungry, most likely nitrogen hungry but could be more than just nitrogen.
-If the plant starts showing spots, its most likely a micronutrient deficiency. Your liquids have all that is needed so in this case, your two brown spots were most likely caused by the low PH.
-If the tips on exclusively the top leaves start getting yellow and then brown, the light is too intense or its too hot in the top canopy.
-If the tips on the leaves are yellowing and browning in all of the plant, youre probably using too much PK,
-If the leaves start getting a shiny green and then start clawing, its too much nitrogen.
-If the leaves are yellowing but theyre not going from bottom to top but instead are randomly located, its most likely potassium deficiency. Specially when the veins remain green but the rest of the leaf is yellowing.

With all that being said, youre following the instructions of a tripart and supplementing calmag so they shouldnt get any deficiency unless you feed them too little or the ph is off. Feel free to revisit this post whenever youre not sure of what a sign in your plant might mean or if you have any more questions.

Use that information if you wanna push nutrients, you will need to stop increasing when you see crispy tips and maybe back down a little.

Eledin · Jul 1, 2025

I always crips some tips trying to find the maximum dosage, thats completely fine, and even if you burn some edges in late flower (is what comes next after the tips, the edges will crisp). Just try to keep it to a minimum, augment doses slowly so you know when to stop and take a step back with accuracy. And if it only happens on the top leaves, again, its light related.

LoveGrowingIt · Jul 1, 2025

ArittGrow said:
Watered with RO water PHed to 5.8-6.0

ArittGrow said:
And have watered with plain RO water PHed to 6.0-6.4 since

Eledin said:
If the plant starts showing spots, its most likely a micronutrient deficiency.

Micronutrient toxicity due to low pH is a possibility. It was my first thought when I looked at the pictures. Have you done a soil pH test? A slurry test is easy to do.

LoveGrowingIt · Jul 1, 2025

Is this a Deficiency or burn?

Is this a Deficiency or burn?

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