yellow bars on leaves

[dseegy]

Hello All
I have my 4 plants and they are growing really well but I am starting to get yellowing on the leafs. they are about 3 feet in height and I have light about 18 inches above plants
I turned light down to 50%. Any help would be appreciated
Thanks

[gbauto]

Pics are helpful

[dseegy]

[dseegy]

This is what I have happening

[CaptainWiese91]

Magnesium is my proposal, look leaf symptoms up - under magnesium

[dseegy]

[CaptainWiese91]

Really hard to see anything with that light on - and from that angle.
Looks like your plants is really close to your light ?! Many tips are burned - from what I can see

[dseegy]

here is a photo of plant

[dseegy]

The light is about 18 inches from plants

[CaptainWiese91]

You have some symptoms there - for sure my friend. How much nutrition are you giving the plant ? And did you add any magnesium? Or cal?

[dseegy]

I have added no fertilizer as of yet. I ordered but have not received yet

[CaptainWiese91]

What kind of soil are you using ? So no fertilizer means also no Cal-mag supplements?
Hard to see the true color of the whole plant on that HPS light. But I definitely see some “clawing” - indicates nitrogen toxicity.

[vostok]

Nute Burn IMO pour 3 times the pot volume of air temp Ph'ed water
at days end so they recover over night(drain out)
to continue in the morning
no nute for 2 weeks or until you see a correction

good luck

[CaptainWiese91]

He hasn’t used any nutes...........

[CaptainWiese91]

If he flush the plant and have no fertilizer, he is also flushing everting else out of the pot. Then he have no nutrition at all in the pot. I wouldn’t flush. But maybe water to make some run off water..

[dseegy]

organic soil

[CaptainWiese91]

You definitely need cal mag.
But organic soil - it should do the PH metering itself.
You have nitrogen toxicity- you need to feed it more water so you get run off water.
If you choose to flush the plants - you need organic fertilizer after to give the plant the right nutrients again - without nitrogen in it. Because you have plenty of it in the plant what I think.

[dseegy]

where can I buy cal-mag

[CaptainWiese91]

I don’t know where you live, but in normal grow shops. And on the internet of course. Remember to water only - with run off. And you told you are waiting for organic fertilizer/ so no problem there - just watch out for the nitrogen toxicity 👍🏻

[dseegy]

Thanks guys
ordered some cal-mag from amazon the sensi brand