Light brown spots

So, as I've mentioned in other threads. I'm a noob at this. lol. The spots showed up on my plant, over night. Two affected leaves on one side and one affected leaf on the other side (not seen in the pic). I just watered it again, today. I only water when she dries out (about once or twice a week). It IS warm in there and I did just add a new light. But, I didn't suspect the light as the brown spots are only on the lower leaves.

Does this look like an issue? Can you guys tell what it might be?

(By the way, the leaves aren't as yellow as they are in the pic. The camera didn't quite capture the colours as they are.)

A_String said:

So, as I've mentioned in other threads. I'm a noob at this. lol. The spots showed up on my plant, over night. Two affected leaves on one side and one affected leaf on the other side (not seen in the pic). I just watered it again, today. I only water when she dries out (about once or twice a week). It IS warm in there and I did just add a new light. But, I didn't suspect the light as the brown spots are only on the lower leaves.

Does this look like an issue? Can you guys tell what it might be?

(By the way, the leaves aren't as yellow as they are in the pic. The camera didn't quite capture the colours as they are.)
View attachment 4857641

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Did you spill something on that leaf?

PadawanWarrior said:

Did you spill something on that leaf?

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I did not. Water is added, at the side of the pot, so as to not get any on the leaves. I'm using nutes, but it's still a VERY young plant so I've only added a pinch to the water. The brown spots were only on one leaf, two days ago, then, today, they were on the second one, seen in the pic, and on a third leaf on the other side of the plant (not seen in the pic).

Is it possible that a few drops of water landed on the leaves and the light is so bright that it burned them?

A_String said:

I did not. Water is added, at the side of the pot, so as to not get any on the leaves. I'm using nutes, but it's still a VERY young plant so I've only added a pinch to the water. The brown spots were only on one leaf, two days ago, then, today, they were on the second one, seen in the pic, and on a third leaf on the other side of the plant (not seen in the pic).

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Well if it's spreading it might not be water spots.

Its not uncommon in seedlings. They want food. Could be nute deficiency. Padawan warrior has an astute observation of it spreading. My guess is calcium and likely other minerals as well.

Okay. I will up the nutes to "normal" levels. I was under the impression that seedlings shouldn't get too much nutes. I was clearly wrong. lol.
It WILL have to wait until the next water though. I JUST watered it today and the humidity is a bit high in there.

I am not reccomending that!
Think about the soil how rich it is. How little or how much water they have received. You could be underwatering as well. FYI-A good flush weekly or bi-weekly helps with salt build up. Think about what you should feed first. And a moist soil is most receptive to fertilizer use eithe liquid or granular watered in.
Whats in your nutrient you are using? Good to know whats going in. Whats getting used and what easily is mobile and leaves thru runoff. Is it too strong for normal strength at this plant age?!
You could safely start with a 1/4 to 1/2 strength solution depending on strength.
But think about it first. Do your fact checks so you learn. Were just making it easier to find the answer. We're only working from cellphones pics after all.

Thanks!
This is the nutrient mix I am using. I am following the directions on the side and mixing it with water in a 2L bottle. Then I use the bottle to water the plant any time the soil seems to be dried out/drying out.

Underwatering damage...

Bukvičák said:

Underwatering damage...

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This occurred to me but I wasn't sure. Previous advice told me to wait till the soil was dried out before water again. I mean...not ALL the way dried out, but surface dry and just starting to dry out an inch down.

Maybe I should try less water, more frequently?

So...the plant gets nutrient solution every time its dried out? No plain water. You're setting yourself self up for some issues. Salt toxicity, nute lock up, soil that doesn't wet properly.
Underwatering is what another member said. And yes it could be that.
Do you notice the amount of run off? Something like 10 % of the volume of the pot as runoff is good when just watering, not using nutes. Then let it dry out. Make sure your soil medium is moist before using your nutrient solution. You can "float" your nutrient solution on top of recently watered pots. Or the next day or two if its still moist, feed and it will soak in. Drying out, especially via transpiration is important to plant growth as much as watering. Have fans, dehum and or exhaust?
Get more advice on watering, feeding and drying out. You will get a loose schedule that changes in frequency, volume and or strength of solution as the plant grows and develops or you environment changes with seasons, equipment strains that can change plant needs.

That’s not calcium. That’s actually leaf damage. Not just spotting.

Looking for some help. What are your thoughts on shown photo? Healthy or needs nutrients (og kush fem) about 4 weeks old

hotrodharley said:

That’s not calcium. That’s actually leaf damage. Not just spotting.

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What would you guess it is?

Snoopy808 said:

So...the plant gets nutrient solution every time its dried out? No plain water. You're setting yourself self up for some issues. Salt toxicity, nute lock up, soil that doesn't wet properly.
Underwatering is what another member said. And yes it could be that.
Do you notice the amount of run off? Something like 10 % of the volume of the pot as runoff is good when just watering, not using nutes. Then let it dry out. Make sure your soil medium is moist before using your nutrient solution. You can "float" your nutrient solution on top of recently watered pots. Or the next day or two if its still moist, feed and it will soak in. Drying out, especially via transpiration is important to plant growth as much as watering. Have fans, dehum and or exhaust?
Get more advice on watering, feeding and drying out. You will get a loose schedule that changes in frequency, volume and or strength of solution as the plant grows and develops or you environment changes with seasons, equipment strains that can change plant needs.

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Some great advice! Thank you!

A_String said:

What would you guess it is?

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I have to be with the people wondering about something splashed on them.

A_String said:

This occurred to me but I wasn't sure. Previous advice told me to wait till the soil was dried out before water again. I mean...not ALL the way dried out, but surface dry and just starting to dry out an inch down.

Maybe I should try less water, more frequently?

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Nope. Once the plant is big enough you water till runoff few drops comming out the pot. It does not mean to soak completely the whole pot! You can do this when the plant is big enough with thick and healthy root mass. Than you want to let it dry But you do not want to let it dry out through as well. Ideal is to water, when they are half-weight of what they are just after regular watering. Thats ofc sometimes impossible to measure when the game really start to run. But you can make yourself imagination about how the mix is looking when needs to water and lifting the pot. That sucks about peat, when you have more plants you ussually end up with watering each day one of them and you have to remember also their personal schedule. I do not see it working to water them all the time with nutrient solution. If you want to go that way, you gonna need much more runoff each watering and watering with excessive amount of nutrient solution is not good for your medium. And if you let them dry too much under full feed than you gonna cry a lot, not just few dry spots on the leaf which will be removed soon. Good luck bro!

I will switch from regular feeding to alternating the feedings with regular water. Hopefully it's just an issue of using nutes to frequently. I will update in a few days to let you guys know how it's doing.

Okay....well. Some new, blacker spots have appeared on the original leaf. I cut it, in case it's some sort of fungus. Also, hoping it will make it easier for one of you to identify. I've noticed that the plant is starting to look droopy. Leaves look like it hasn't been watered in a while. They are lush and green and TONS of new growth, but the leaves are hanging down and droopy.

Here is the spots on the cut leaf: