Advice for this please

First time grower. They started to yellowing.
Info

Light marshydro ts1000. Soil mixed worm casting 70% , 20% humus potting mix, 10 % regular soil from ground + two hands 15 15 15 mixed inside. This soil is 70% in 15 liters pot the rest on the top is potting mix humus, perlite. Watering with tap water seated 24 hours every day but small quantities 200 -300ml ph level unknown. Light is 12x12 and is 30 cm from the plants on 50% dimmed like the spects from marshydro.

1.Northen lights from herbies day 9 the smalest one.

2. Auto ak xxl destroyer day 11.

3. Zkittlez auto day 11

Starting in large containers means it takes a long time for a good root system to develop
The foliage wont kick in until the roots have developed
Not really understanding what light you are using but I seriously doubt you need it at 50%
maybe 85%
Oh
And welcome to RIU

Check the pH of your water and soil, make sure you're watering properly, and consider nutrient deficiencies. Good luck with your Northern Lights plant!

Herb & Suds said:

Starting in large containers means it takes a long time for a good root system to develop
The foliage wont kick in until the roots have developed
Not really understanding what light you are using but I seriously doubt you need it at 50%
maybe 85%
Oh
And welcome to RIU

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Thank you,

About the light is 150 watts led i dont want to post links im not here to advertise. The reviews for this light wast good and also the price which was in my budget. Here is the screenshot from specs.

Thank you again and i hope this first grow will be successful.

grow_it_Up said:

Check the pH of your water and soil, make sure you're watering properly, and consider nutrient deficiencies. Good luck with your Northern Lights plant!

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Hello and thak you for replay.
The next thing on the list is ph and humidity metter in soil.

funhoby said:

Hello and thak you for replay.
The next thing on the list is ph and humidity metter in soil.

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Don’t buy a cheap soil moisture and ph combo meter they are useless
Learn to water by pot feel and soil acts as a buffer so ph isn’t as important

Herb & Suds said:

Don’t buy a cheap soil moisture and ph combo meter they are useless
Learn to water by pot feel and soil acts as a buffer so ph isn’t as important

Click to expand...

Sorry im new on this and starting to panic. The leaves yellowing increased can be this sulfur deficiency problem maybe ?

funhoby said:

Sorry im new on this and starting to panic. The leaves yellowing increased can be this sulfur deficiency problem maybe ?

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Not at this age
More likely poor watering practices
It will likely grow out if it if you don’t kill it with kindness