Deficiency? What kind? How to fix?

[Jpkindbud]

Problem: leaves on a couple in 4x4 have orangish and yellowing

Medium/grow methodeat based soil with 1/3 MG perlite mixed in( perlite rinsed in warm water for 5+ minutes

Feed: and supplements used: Megacrop at 1 gram per gallon

water source:well water, slightly high in iron comes out of tap at 6.5 ph

Strain/age: white widow, blueberry, California orange./ day 27. Photoperiod

light used:2x kingbrite 240w 3500k at 100% and Mars hydro ts600

Climate: 77-81 deg F, 66%humidity

Additional info: waited for pots to dry some after transplant

so they were lacking in nutes. Also leaves seem drying like paper.

 

[namvet25]

Is the potting mix miricle grow?and are you using cal/mag?

 

[Jpkindbud]

Potting mix is promix premium moisture. Cal/mag is included in Megacrop.

 

[Jpkindbud]

Checked runoff PH, 6.35 do not have ec/ppm meter.