Hello, I've been having some problems with my grow lately and cant seem to get a hit of what its lacking. I'll post pics of them. Also this is my first grow ever.
Strain:Jack Herer (Auto)

Age of plants: 13 day from seed.
Medium:FoxFarm Ocean Floor and Bushdoct Cocoloco. mix of 50/50
Nutrients: Used FoxFarm Grow Big and Big Bloom
PH: I ph to 5.7 to 6.
Lights: Two HLG QB 288 v2 at about 20in.
Environment: 4x2x60 I keep this at about 60% humid and have an average temp of 75-88°
Anyone have a clue as to what these plant are going through? Thank you for you're time.
Yea my first guess is PH raise to 6.3-6.5 for soil 5.7-6.0 is for coco
That's where I find my very first problem. It's a mix of both Ocean Floor and CocoLoco. One is coco and other is soil. Man behind the counter suggested the mix of two with good results. I mix half and half on a 5 Gal fabric pot. I took some soil from each one and did run of and got ph of 5 to 5.5 (ph pen broke did the drop method to get my ph) and ppm of 1483.
Only put big bloom my first feed. 1/4 of recommendation.
@PCE1 Yep if coco is mixed with soil still soil and also depends on your nutrients which are soil nutrients. Raise that PH and youll be golden and girl will be happy.
@Admin BLG thanks for the speedy reply! I did a feeding thismorning of big grow and big bloom at half recommendation and ph to 6.8 and par of 816. Hope to see better results after today. Again thanks for you're time and love watching you're grows!