Wierd discolouration

Hi guys...

I have these plants with some strange patterns....


Anyone know what it is?

Details
See image of the last weeks logs
Under led
24hrs light
In coco that I have reused from the last grow

Ec is 1.8 and I have lowered it run off was coming out at 2.6

Ph was at 6 for nutes but run off was at 6.5 so I reduced it to 5.8 and tried to flush them a little.

I'm assuming they are autos since they are under a 24h light schedule. Also going to assume your light isn't the issue since the burns are hitting both the top and bottom of your plant. Are you using nutrients? If so , is it possible you're giving them too much because that looks like a nutrient burn to me.

How often are you giving nutes and what's the ratio in which you are mixing the nutes in?

Looks like the issue I had as well. Interveinal chlorosis (yellow between the veins) is usually caused by Mg deficiency or Iron Deficiency. With Mg def, it starts from lower leaves and slowly reaches the new growth. It also starts from the tips of the leaves. Iron deficiency shows up on newer growth and starts from the middle and continues to the tips. Mine is a mg def and I flushed with water and half strength of Epsom Salts, phed at 6.7 since Mg prefers higher pH.

Either a deficiency or a lockout. Flush them really well and make sure you're pHing everything you're putting in. On a side note, have you checked for spider mites? Some of the spotting on those leaves looks suspect.

Have you reused coco before and how did you floosh eet?

Eugenios said:

Looks like the issue I had as well. Interveinal chlorosis (yellow between the veins) is usually caused by Mg deficiency or Iron Deficiency. With Mg def, it starts from lower leaves and slowly reaches the new growth. It also starts from the tips of the leaves. Iron deficiency shows up on newer growth and starts from the middle and continues to the tips. Mine is a mg def and I flushed with water and half strength of Epsom Salts, phed at 6.7 since Mg prefers higher pH.

Click to expand...

6.7 is high... I assume you are in soil? I'm in coco... but yeah a flush with calmag might do it. I have already added some calmag to the mix

spliffendz said:

Have you reused coco before and how did you floosh eet?

Click to expand...

I have... but thisnlot had dried out for a bit... never let it dry before and I think that has caused the issues... I didn't flush it... probably the issue

Maggs707 said:

Either a deficiency or a lockout. Flush them really well and make sure you're pHing everything you're putting in. On a side note, have you checked for spider mites? Some of the spotting on those leaves looks suspect.

Click to expand...

No mites... I have had pest off blocks in there for a week or so as I saw a gnat. Those blocks kill literally everything... but they atent great for humans... so I only use when I have to... then they come out and get stored.

4TheGrow said:

How often are you giving nutes and what's the ratio in which you are mixing the nutes in?

Click to expand...

They are fed every day. I was up at 1.8ec... but I have lowered it to 1.3 as I agree with most its an over feeding issue.

I also reversed the air direction... my fan pulls air from one tent to another so it was going from this tent to another tent that has a dehumidifier in. The other tent is half way through flower and is doing really well. I reversed the air flow and now this tent will recieve dryer warmer air.

The annoying part is they are now the perfect size to flip into flower... but now I want to wait til I see healthy growth....


You live and learn... shouldnhave done a really good flush or used fresh coco.

Here is the other tent.... just to show I'm not a complete noob lol

It could be tbh...You can try adding a light amount of calmag...But don't overdo it. Give it time to rest, you're going to be fine.