What deficiency is this?

[Oneofthree]

Hey people. Im having a small problem with my OG.
She is in a 5g smart pot with plagron light mix soil.
Im using biobuzz nutriants and calmag. Ph in is 6.5 ppm reads 450 and the ph out is 6.1.
Iv got a lot of leavs that have light spots on them and i was wondering if anyone could help me with what they are.

 

[Carcass]

Can you post a close up of a leaf-it looks sort of like leaf miners,but
can't see it clear enough in those pics to tell for sure.

 

[George Mc]

Cal Mag deficiency is my guess

 

[CO Finest]

For my soil grows 6.5 is a little on low side which would run out around 6.0-6.1. I run 6.8 in and run out is on the money around 6.5-6.6. What kind of lights are you using?

 

[Oneofthree]

For my soil grows 6.5 is a little on low side which would run out around 6.0-6.1. I run 6.8 in and run out is on the money around 6.5-6.6. What kind of lights are you using?

Using a 300w L.E.D in a 2X2X4 grow tent.

 

[CO Finest]

So I will guess you might know with led the cal/mag needs to almost need to be doubled. I start with 1/4 more then directed then a week from there if I see any purple stems I up another 1/4 if needed. But I would try upping Ph first. With 6.5 your plants could not be taking up all the nutes. 6.7-6.8 safe numbers for soil. I would highly recommend using recharge with any nutes you are using. When using that kiss Ph ing by by no need to ever Ph again my friend and you get sweeteners,kelp and microbes all in one

 

[CO Finest]

Oh sorry for second post. I forgot to add. Watch the nitrogen amount going in during flower. Not sure what you N.P.K is on your nutes your using but I have seen that color and the points of the leafs turning sideways is a sign from high nitrogen use in flower. But I would start with P.h because with low P/h some nutes will not get took up in plant and cal/mag first.

 

[Virgin Ground]

Make sure it isn't bugs or a leaf variegation before you start treating it for deficiencies.

 

[Hoodlum1]

Cal mag when the stem is purple