I can't define the problem I have

[CaluReeves]

Hi guys. The plants are almost 4 weeks old. For two weeks now some yellow streaks are visible on the bigger leaves. On some little leaves the situation seems worst as in the photos. I cant get what it is. Overwatering maybe or some deficiency. I use Advanced Nutrients starter kit (half of the recommended dosage). Can someone please figure it out for me? The photos are take just after a huge defoliation about half an hour ago.

Thank you very much

 

[ArtfulCodger]

What's the media? How often and how much are you watering? How often and how much are you feeding? Any supplements? What light, how far from tops, at what dimmer level?

 

[BB22]

The twisted leafs make me think critters.

I’m dealing with something similar

Lights out right now , so no pic

 

[mancorn]

Are the plants topped? I’d guess wet & cold.

 

[m8ty]

Too many nutrients and over water go hand in hand

 

[Grownsince95]

It looks like your pushing the Mg hard with the light intensity causing a borderline deficiency. What kind of water are you using, tap, well or RO?

If I remember correctly the AN starter pack doesn't include the cal/mag supplement.

Could be as simple as dimming the light slightly if you have it cranked up.

 

[CaluReeves]

Thank you guys, so first thing I'll explain my setup:



Box: 60x50x120 cm (2x1.5x4 feet i guess)

Light: Mars Hydro TS600 (no dimmable)
Light height: +- 30cm now (back then it was a bit higher)
Light cycle: 18-6

Medium: soil, mid mix made by a local growshop

Pot size: geotessile 11L

Strain: Critical + 2.0 by Silent Seeds (photoperiodic, no auto)

Little fan for air intake and one a little bigger for wind circulation inside the boc

Temperature: about 30°C when light on, about 20°C when light off
Umidity: it depends a lot but never higher than 75% or lower than 25% (usually 50-60 when on and 70 when off but it lows gradually as I don't water)

Ferts (in this stage of life): Advanced Nutrients Sensi Grow A+B (3ml/l), B-52 (1ml/l), Bud Candy (1ml/l)
I water twice a week at this stage, 1L per plant.

Plants topped about 1 week ago between 4th and 5th nodes. Both plants born on 23th of february.




After the last big defoliation and after giving some more ferts as written above the situation seems better, the plants seem healtier. I also moved the light a little down, maybe it was too far. Now young leaves have not streaks and also olders in general ain't no more twisted.

I still don't know if I resolved the problem and still cannot figure it out what it was but maybe now describing the setup it is easier for some more-experienced to understand what happened.
No photos because now down there is night :(

By the way thank you a lot for the responses!

Have a good day out there!!