Leaves covering the buds like a ball??

[gr0w4sh0w]

Watered lightly and this happened for one plant overnight?? - first pic

All plants has yellowing smoothly taking over the leaves, cant find a solution when anyone you ask says “ you need calmag”
What could it be other than nutreint defiency? Second pic

 

[gr0w4sh0w]

Only getting worse and spred to the other plants

 

[TreeFarmerCharlie]

Looks like serious heat stress to me. Nobody is going to be able to help you without more information about your growing conditions and watering/feed/medium info, though.

 

[Renfro]

Nobody is going to be able to help you without more information about your growing conditions and watering/feed/medium info, though.

This ^

 

[Renfro]

If I had to just throw out a guess I would be thinking it's feed / pH related, perhaps root health. Since it started suddenly I would discount heat as the cause unless you had a corresponding spike.

 

[70's natureboy]

Well you obviously aren't using the boring old tried and true Lucas Formula. They look pretty dark green. I assume they are over-dosing on something.

 

[Mr. Cheetah]

omg, what you did to them man

 

[gr0w4sh0w]

I use biotabs starterkit which is organic slow release shouldnt be that

 

[gr0w4sh0w]

One plant had some illness when it spread to the one next to it i eliminated them. Couple days later the others had it i removed affected leaves and sprayed with bio foliar sf against fungus.. so many problems for my first grow

 

[gr0w4sh0w]

Soil biobizz lightmix
Pots 11L
All reccomended nutes from the biotabs kit
Flowered early bout day 20 now entering week 7 soon

 

[gr0w4sh0w]

Temp 28 celcius
40% rh
watered when dry about every 2 days

For some reason runoff water come after the first seconds of watering? But dissapears by the morning

 

[Gentlemencorpse]

Temp 28 celcius
40% rh
watered when dry about every 2 days

For some reason runoff water come after the first seconds of watering? But dissapears by the morning

That usually means your medium has become hydrophobic. Water smaller amounts slower making sure it's actually being absorbed into the medium.

 

[gr0w4sh0w]

Yeah the soil Quickly becomes crispy

 

[CannaCountry]

Temp 28 celcius
40% rh
watered when dry about every 2 days

For some reason runoff water come after the first seconds of watering? But dissapears by the morning

Sounds like you're allowing them to sit in their runoff?

 

[Renfro]

Sounds like you're allowing them to sit in their runoff?

That would be a cause of poor root health.

 

[oill]

Yeah the soil Quickly becomes crispy

Nowhere have you mentioned ph... your ph is off or you are overfertilising.

 

[gr0w4sh0w]

Because they say there is no need to check ph with theese feedings and only use tapwater

 

[KingQuazy]

Because they say there is no need to check ph with theese feedings and only use tapwater

If your soil is buffered maybe.

EC and PH are detrimental and companies will say anything to get you to choose their product. I just read a few threads on the biotabs and I would still ph and ppm my waterings/feedings.

Even organic fertilizers can burn/lockout. It's a common misconception that organics are perfect.

 

[gr0w4sh0w]

gonna but soma testers tommorow
Can you give any further information from the leavesv?

 

[KingQuazy]

gonna but soma testers tommorow
Can you give any further information from the leavesv?

It would be a lot easier if they were still on the plant. I can't tell what height those came from, whether they were curled before you picked them, whether it was curled up or down etc.. give a min I'll look at your original pics again and also check the charts