need a 2nd opinion *pics*

Hey guys-
Just needed a second opinion on these pics. As you can see on some of the leaves shown they seem to fade to to a lighter green/ starting to yellow as they come closer to the stem. Also, one of the pictures shows a topped plant with spotting issues. I think this could be a potassium or magnesium problem.
A little info on the plants
Medium: promix
Ph: 6.5 for feeding 7.0 for watering
Ppm: 650
Week 3 of veg

Just wanted to know what some of you guys on here think

Happy growing

what are ya feeding and how often/much...........?

House & Gardens Soil A/B with H&G additives plus hygrozyme and cal mag

Following a pretty strict feed water water regiment. Watering/feeding roughly every other day (sometimes 2days. they get it when they need it)

I have a 250 M/H thats about 18-20 inches above the canopy, I dont believe thats too close but possibly??

MrGhettoGrower said:

How big is the pots? They're ready for the 5 gallons. Have you grown in them dirt/nutes before? The plants look healthy could be perkier and the green is on the light side. Possible under fed of nutrients with chronic over watering

Click to expand...

The pots are 6x6 square 1 gallon containers. your right, they will go into 5 gallons for flowering soon. I have used promix before and in my experience its very difficult to overwater because of a very high distribution of perlite and the plants havent really been flooded that hard when watered, but in this relatively small pot thats a very good possibility. Thanks for the input guys, its very much appreciated. If any one else has seen anything like this, feel free-