Anyone knows what is this?

[goodbye95]

I have planted these 5 plants in 200 ml pots with clay pebbles at the bottom. I transplanted them from coco when they were young and they started get used to soil after 1 week or so. Growth started to begin but about 1 or 2 weeks ago growth got seriously slow some problems started to appear at the leaves. In general the plants are very small and the old leaves dont seem to be getting bigger despite the fact the new growth occurs.. i thought the ppm was too high cause of the new soil so i flushed and now the runoff ppm is at about 120 . I give only root stimulator since before the flush ppm was about 500 and i noticed it was too high since the tips of the leaves got burned. Now the tips stopped from getting more burned but the growth stopped also. I give organic nutrients from biobizz.
The temperature is at 24.5 c and the rh at 65 %
Lights at lowest intensity and max height.
The photos i provide dont show the problems i wrote above but in general the veins of the leaves are dark green and between the veins it is light green
But others signs as well are seen on different leaves and different plants . It is like they have many different deficiencies or toxicities
Ph is stable at 6.3- 6.4

 

[mysticepipedon]

You have a magnesium deficiency and what looks like a potassium deficiency in the second and last pic. (That isn't nute burn.) Add a teaspoon of epsom salts to your water next feeding, and make sure something with potassium is added.

Stop flushing.

 

[goodbye95]

You have a magnesium deficiency and what looks like a potassium deficiency in the second and last pic. (That isn't nute burn.) Add a teaspoon of epsom salts to your water next feeding, and make sure something with potassium is added.

Stop flushing.

Thank you sir

 

[Sunasun]

Thank you sir

Also, next time ditch the clay pebbles at the bottom. All you're doing is raising your water table and wasting pot space. Your roots are drowning. My condolences.

 

[Aqua Man]

Also, next time ditch the clay pebbles at the bottom. All you're doing is raising your water table and wasting pot space. Your roots are drowning. My condolences.

Yup

 

[goodbye95]

Also, next time ditch the clay pebbles at the bottom. All you're doing is raising your water table and wasting pot space. Your roots are drowning. My condolences.

I have them at the bottom. About 1 cm of the bottom layer is covered with clay pebbles. What do you mean "ditch"?

 

[TSD]

I have them at the bottom. About 1 cm of the bottom layer is covered with clay pebbles. What do you mean "ditch"?

As in don't use them at the bottom. They are just wasting space that soil and roots could be and are messing with the water table height making proper watering more difficult than it already is.

 

[goodbye95]

As in don't use them at the bottom. They are just wasting space that soil and roots could be and are messing with the water table height making proper watering more difficult than it already is.

How should i use them then? Or should i use them at all?

 

[Aqua Man]

How shouldni use them then? Or should i use them at all?

Dont use them imo. Pelite is a better option mixed in.

Marijuana Watering, how media, pot size/shape and environment affect it

Ok lots of posts on how to water plants. So I thought I would put together a thread on how different factors contribute to different results that ppl see. This will be a long read based on my personal knowledge, opinions, research and others work to consolidate information for our members. I'm...

www.thcfarmer.com

 

[goodbye95]

Dont use them imo. Pelite is a better option mixed in.

Marijuana Watering, how media, pot size/shape and environment affect it

Ok lots of posts on how to water plants. So I thought I would put together a thread on how different factors contribute to different results that ppl see. This will be a long read based on my personal knowledge, opinions, research and others work to consolidate information for our members. I'm...

www.thcfarmer.com

Aqua man . Seriously you have helped me more understanding cannabis than all of the information i have consumed on the entire internet till now. Your posts are like a god damn good cocktail mix of precious info.

 

[goodbye95]

Aqua man . Seriously you have helped me more understanding cannabis than all of the information i have consumed on the entire internet till now. Your posts are like a god damn good cocktail mix of precious info.

Seriously man. Good job!

 

[Aqua Man]

Seriously man. Good job!

Glad they could help you brother

 

[goodbye95]

So . Yesterday i watered the plants as it was time to. I put a sugar spoon of epsom salts in 2 litres of water. Some root stimulator and some grow nutrients of a ratio of 5-2-4 up to 700 ppm . The leaves have started to turn at about 45º towards the top . The 2 of the 5 plants are showing their deficiency more . I provide photos below. Which is a deficiency i am not aware of since it is not the same as in the rest of the plants.

 

[Sunasun]

I have them at the bottom. About 1 cm of the bottom layer is covered with clay pebbles. What do you mean "ditch"?

@TSD explains below.

As in don't use them at the bottom. They are just wasting space that soil and roots could be and are messing with the water table height making proper watering more difficult than it already is.

Absolutely this

 

[goodbye95]

@TSD explains below.

Absolutely this

No more clay pebbles . Done ! Next transplant no pebbles. If they need ever a next transplant since they do not grow at all. Imagine these plants are 1.5 months old and they are no taller than 10 cm.

 

[Sunasun]

So . Yesterday i watered the plants as it was time to. I put a sugar spoon of epsom salts in 2 litres of water. Some root stimulator and some grow nutrients of a ratio of 5-2-4 up to 700 ppm . The leaves have started to turn at about 45º towards the top . The 2 of the 5 plants are showing their deficiency more . I provide photos below. Which is a deficiency i am not aware of since it is not the same as in the rest of the plants.

Looks like light stress, raise the light or lower intensity.

 

[goodbye95]

Looks like light stress, raise the light or lower intensity.

Ill figure out how to do this. Thank you guys!

 

[goodbye95]

I will provide a daily report on this thread in hope of preventing any possible fatal mistakes.

Day 2 no signs of growth yet .
I managed to raise the lights by 20 cm and light intensity at 10% .
The signs do not seem worse or better .

Photos of every plant below.

 

[goodbye95]

.

 

[goodbye95]

Day 3

I transplanted to bigger pots WITHOUT clay pebbles to push root expansion .
The ppm is slightly higher ( about 900- 1000) since the new soil is already boosted.
I lowered humidity by 2 % .

Humidity 68%
Temp 24.5

The signs look a little worse but i cannot say for sure yet. The new growth has been affected for a fact on all of the plants.