Is it Nut burn or cal-mac deficiency???

Hi guys!,

I have been reading a lot from the articles on solving the matter, but since it is the first plant I grow, I need an urgent help about brown-rusty dots occurred in the sugar leaves only. Let me give details about my plant;
-Random seeds, probably Lemon Haze.
- We are in the 8th week of flowering period!!
-50% of the pistils are still white, buds gotta fatten up I believe.
- I have been using APTUS k-p boost, NPK ( 10-30-25) and Advanced nutrients overdrive.
- I know the tip of the fan leaves burnt, which is an early sign of nutrients burn.

I'd appreciate if someone could identify wheter the promblem is nutrient burn or Cal-Mag deficiency?

Hi again,

I use

Coco-Soil Mix - 8CFL ( 250W total) + Led 50W all spectrum light

It looks locked out.... what's your ph at?

I dont have any tool to check the ph level im giving brand bottled water which is PH:7.1

Too much P/K is locking out other nutrients and frying your plants. Why are you feeding such high levels of P/K? Too much is detrimental to the plants and can diminish your yield and quality of the final product.

Aptus P boost
Aptus K boost
NPK 10-30-25
Overdrive 1-5-4

I've made a mistake.. there is no many options for dedicated fertilezers in my area since i did not fertilize them with famous trio brand at the veg stage, i thought APTUS was ok... should i stop giving any fertilizers now? Or should i decrease it? Any opinions for the overdrive? The girls at the 8th week of flowering and they are growing very slow..

Should i take them to shower for a flush?

Thanks!!

Trillian said:

I dont have any tool to check the ph level im giving brand bottled water which is PH:7.1

Click to expand...

Feeding coco at 7.1 pH isn't helping you either.

Trillian said:

I've made a mistake.. there is no many options for dedicated fertilezers in my area since i did not fertilize them with famous trio brand at the veg stage, i thought APTUS was ok... should i stop giving any fertilizers now? Or should i decrease it? Any opinions for the overdrive? The girls at the 8th week of flowering and they are growing very slow..

Should i take them to shower for a flush?

Thanks!!

Click to expand...

I'm not saying anything you're using is bad. I'm saying that the combination of what you are using is too high in Phosphorus and Potassium.

It's hard to say what you should do. Do you have a label showing the ingredients of the NPK 10-30-25? If it has micronutrients in it then that's all you need. You don't need Overdrive or the Aptus boost.

no no u got me wrong i only use APTUS for fertilizer the npk ratio that i've given is for APTUS only + over drive. Should i stop using them both?