What's going on to the leaves?

[radagast]

I have three auto flowering plants that are showing the same symptoms on their bottom/mid leaves. Read on the forum it could be lack of light, phosphorus deficiency, pH fluctuations and plant age, so i don't know if i should fix something or defoliate those leaves.
Light isn't strong, only 65w qb lm301h, which could be one of the reasons, but the plant isn't taller being around 100cm tall.
Feeding biobizz bio grow 3ml/L, bio bloom 2ml/L, topmax 1ml/L every two days, not a lot of water given the pot sizes, so it's almost completely dry by the next harvest.

Should i do something or am i doing something wrong?
I'm attaching multiple photos and one video that might give more insight.

Thanks, in advance.

 

[Cophiljay]

Not sure what you are seeing in the bottom to mid leaves... What I see is normal leaf yellowing in a flowering plant. They look healthy to me. I only pick off those leaves when they are fully yellow.

 

[GanjaJack]

Those plants look fake almost they're so nice.

Nice job.

Keep your PH in check, the leaf damage is older.

New growth is perfect.

 

[radagast]

Not sure what you are seeing in the bottom to mid leaves... What I see is normal leaf yellowing in a flowering plant. They look healthy to me. I only pick off those leaves when they are fully yellow.

Thanks, I might be worrying too much, this is my first real try that i put some money into it and i'm still on a tight budget. Leaves that are weak i'm pulling off, but only those that are falling almost by itself with dry-ish stem. That's also OK? Some of those yellow leaves are still quite strong.

Those plants look fake almost they're so nice.

Nice job.

Keep your PH in check, the leaf damage is older.

New growth is perfect.

Thanks, brother! Too scared to mess things up and have a dead plant so close to harvest and with her two sisters about to flower.
My pH meter died, turns out the $3 deal on AliExpress wasn't from a reputable seller after all, i'll try to check on pH as soon as i'm able to.

Thanks, i'll keep check on new growth and keep on feeding.
Any tips or advice? Should i do anything else?

 

[Cannaburg]

Cut nutes back a little... try feeding 2x a week with a regular watering inbetween

 

[Cannaburg]

Thanks, I might be worrying too much, this is my first real try that i put some money into it and i'm still on a tight budget. Leaves that are weak i'm pulling off, but only those that are falling almost by itself with dry-ish stem. That's also OK? Some of those yellow leaves are still quite strong.



Thanks, brother! Too scared to mess things up and have a dead plant so close to harvest and with her two sisters about to flower.
My pH meter died, turns out the $3 deal on AliExpress wasn't from a reputable seller after all, i'll try to check on pH as soon as i'm able to.

Thanks, i'll keep check on new growth and keep on feeding.
Any tips or advice? Should i do anything else?

Also amazon... tds and ph meters for 10 bucks

 

[radagast]

Cut nutes back a little... try feeding 2x a week with a regular watering inbetween

I've been confused about if i should feed every watering or every other watering (water>feed>water>feed). My medium is a mixture of a low 0.7 EC soil mixed with more perlite and a little bit of worm humus for usage of organic fertilizers, and from what i could gather reading information online on websites such as GrowWeedEasy is that i should read plants signs:

- If watering every day: careful with nute burns and lock up/salt accumulation.
- If watering every other day: careful with too nute deficiency.

The safest approach seems to be applying a diluted solution to every watering instead of the full recommended dosage.
Could you give your insight about that?

 

[Cannaburg]

I've been confused about if i should feed every watering or every other watering (water>feed>water>feed). My medium is a mixture of a low 0.7 EC soil mixed with more perlite and a little bit of worm humus for usage of organic fertilizers, and from what i could gather reading information online on websites such as GrowWeedEasy is that i should read plants signs:

- If watering every day: careful with nute burns and lock up/salt accumulation.
- If watering every other day: careful with too nute deficiency.

The safest approach seems to be applying a diluted solution to every watering instead of the full recommended dosage.
Could you give your insight about that?

So your plants are showing signs of overfeeding ...

Simplest way to go about.... feed with every watering but use HALF of reco dosage....

In the beginning I maybe feed 2x a week... I'll actually pick up cup/pot to feel how heavy it is....

As they get older you notice they get thirstier... you ll be eventually feeding every other day once they get there....

For now what you should do.... just water with out nutes to flush and suck up what's in your pot for next 7 to 10 days... once you see them even out and destress... start your dosage at 25% strength for following 7 days.... after that use the 50% method...

Best to actually pick up pots to feel how wet or dry they are