Yellow spots

Hello! So my plants have these yellow spots on them (which might be leaf septoria) but I’m not sure. I have been working on some white power mildew that it has with lost coast plant therapy spray and it has been working. I also was feeding them with some cal mag ph water. Recently just ph water because I’m not sure what is happening to them.
soil fox farms
Ph water ~6
Led light
In a tent/ outside
Veg

what is the best way to take care of this problem?
Thank you for your help!

They look a little rough; any progress since you posted?

MustGro said:

They look a little rough; any progress since you posted?

Click to expand...

They are doing better for sure but not all the way there...I cut off most bad leaves and gave them some (don’t hate me) calmag and they loved it. I also did find bugs! I’m not sure if it’s aphids or something else but they are small clear/ white bugs. So I’ve been spraying plant therapy on them but it hard caz I have a lot of plants now and it’s overwhelming haha