1 week veg, first nute, Yellow Leaves

Hello all, i seem to be experiencing yellowing leaves after my first dose of nuts in flowering
I have bloom builder by Schultz, which is a 5-30-5, the only thing my local home depot had on hand. Is this yellowing caused by this?? or is it a lack of N in my solution? I am on week one in the flowering cycle. Temps have been up and down, 90-86. Soil is a Schultz potting mix with organic peat moss. Water Ph i have no idea last time i checked it was somewhere around 6- 6.2, hard to match the colour with the test kit.
Any help is really appreciated and i will give rep if need be! I have looked through some threads but nothing is really describing lower mature leaves turning yellow!

pics below Of 2 out of the 3 plants i have.

MikeyPeenz said:

Hello all, i seem to be experiencing yellowing leaves after my first dose of nuts in veg.
I have bloom builder by Schultz, which is a 5-30-5, the only thing my local home depot had on hand. Is this yellowing caused by this?? or is it a lack of N in my solution? I am on week one in the veg cycle. Temps have been up and down, 90-86. Soil is a Schultz potting mix with organic peat moss. Water Ph i have no idea last time i checked it was somewhere around 6- 6.2, hard to match the colour with the test kit.
Any help is really appreciated and i will give rep if need be! I have looked through some threads but nothing is really describing lower mature leaves turning yellow!

pics below Of 2 out of the 3 plants i have.

Click to expand...

It looks like your fertilizer is more of a flowering fert than veg. I think you need more of a higher ration N fert for right now and save that for flowering. The yellowing definitely looks like N deficiency. And 90 is a little hot, try to stay below 85.

Here are some typical veg nute ratios: 30-10-10, 9-3-6, 20-10-20.