Is this normal?

[somagtoke]

My girls at day 40 and 35 i see the bottom fan leaves yellowing and some have burn like brown spots. Could these be water burns Or they need tho be fed with flower nutes?

Basic info:
Medium: soil, FFOF nd espoma organic
Light: 1 viparspectra 300w led
Space: 2.5x2.5x5 tent
In 5 gallon smart pots downsized a bit.

I've not used any regular nutes feed so fat, some random dose of tapping roots mix that i got as sample.
I have FF big bloom nutes for flower. That i plan to start from next feed. Just gave them a plain water feed today. So next should bee in about 3 days. They take almost 3L each

 

[namvet25]

It's not uncomon for a few older bottom leaves to yellow.Just remove the worst ones and any other leaves that are touching the soil.You should start feeding bloom nutes now and add some cal/mag other than that there looking just fine.

 

[somagtoke]

It's not uncomon for a few older bottom leaves to yellow.Just remove the worst ones and any other leaves that are touching the soil.You should start feeding bloom nutes now and add some cal/mag other than that there looking just fine.

Cool thanks door the tips bro, i plan to start feed from next water in 3 days. I use tap water so figured i would not need cal mag any particular reason you feel?

Also i read on theses forums that led vs yellowing indicate plant feeding of it, so shouldn't i just let the plant take care of that?