Is this a zinc deficiency?

[Scoutgrows]

’m a new grower and am just curious if these are looking healthy. 3 RQS Punch Pie & 1 RQS OG Kush all in fox farm ocean forest currently at the start of week 4 flower and running the fox farmnutrient cycle 15ml big bloom, 10ml grow big and 5ml tiger bloom. I have these under a mars hydroFC-E3000 at 70% power aprox 18” above canopy. I water every other day PH levels 6.4 - 6.8 and cycle nutrients every other watering. Temperatures 78-80 degrees during light cycle 65 - 68 degrees durning dark cycle.

 

[HerbalEdu]

not all phenotype will have the same green, could also be a capricious phenotype with your feeding schedule than need some adjustement.

 

[Scoutgrows]

not all phenotype will have the same green, could also be a capricious phenotype with your feeding schedule than need some adjustement.

Thanks the plant with the darker leaves is one of the 3 punch pies not the OG that’s where my concern is. They do seem to be flowering well and not dying just seems like something is off