Yellowing leaves

[NEPALI 420]

Could any dear good fellow assist.....?
I've got these leaves not looking right......! Any body cares to comment?
Also
How do you know if your HPS 600w lamp is finnish. E. G. STILL BURNING BUT WRONG SPECTRUM?

 

[upinsmoke365]

Can you post pictures in regular lighting? What's your medium, and nutrients dosage?

 

[NEPALI 420]

 

[upinsmoke365]

Looks like a magnesium def and probably calcium. Full pictures work better. What's you soil and are you checking pH going in and out? Also curling leafs at tips indicates to much nitrogen.

 

[NEPALI 420]

Wow. Thanks for the reply.
I'm using Virgin Coco coir and perlite mix and feeding from below with autopots.
Ph is between 5.5 and 6.1

 

[NEPALI 420]

Here is one more pic.

 

[NEPALI 420]

 

[Chris Scorpio]

Think he means full pics of the plant not just the leaves

 

[BudBoy2]

Think he means full pics of the plant not just the leaves.

Yes for sure bro take a full pic of the plant. That would help much better...

 

[NEPALI 420]

 

[NEPALI 420]

 

[BudBoy2]

Nepali, it looks like a deficiency of some sorts or are you over watering? Looks to me a magnesium deficiency. Also check your ph in your soil. You don't want nutrient lock out. Hope this graph helps.

 

[Blazin Waffle]

Cal-mag. Add it.

What's the medium you are growing in?

 

[Blazin Waffle]

I realized you already said you were in coco. I haven't gone full coco, but you do need to supplement cal-mag in it.
I'm confident that's your issue!

I'm sure you'll get a coco grower that can be more detailed in why!

 

[NEPALI 420]

Thanks BW
You're right about the Cal Mag. I didn't buffer enough.