Yellowing bottom leaves..

So this is my first indoor grow, and its a scrog but anyways, just wondering if this is possibly a nitrogen deficiency and if not what is it...some of the bottom leaves are starting to get a lighter green and a bit yellow on some..so ya..also its been on 12/12 for about a week

is there anyone that can help?

anyone..help...?

Looks like nitrogen deficiency to me.

Alright cool, thats what I was thinking..perhaps I will throw a bit of nitro in there then

yes nitro, either you are not feeding or the ph has locked out the nitro

This would be the first time i fed it in like a month and a half..so I figure I should so I did..na the ph is 6.7 right now