Mag Deficiency ?

[dk2357MO.]

This auto magnum is 68 days old grown in 2 gallon fabric pots with HF. I use GH Flora series. I am beginning to see yellowing on some leaves mainly on the outer edges. Could this be a mag deficiency ? Its actually on some middle Fan leaves and their stems are reddish looking. Thx in advance for any input.

 

[NorthernLights_420]

This auto magnum is 68 days old grown in 2 gallon fabric pots with HF. I use GH Flora series. I am beginning to see yellowing on some leaves mainly on the outer edges. Could this be a mag deficiency ? Its actually on some middle Fan leaves and their stems are reddish looking. Thx in advance for any input.View attachment 1246461View attachment 1246462View attachment 1246463

Pottasium deficiency I believe

 

[NorthernLights_420]

 

[dk2357MO.]

Thanks for replying Northern Lights , I appreciate it.