You can definitely have strains that keep a real green color throughout their growth. Even after the cure. It's a lime green too. I've always liked those phenos !! Later
I grew No Fruntz-OD this year and was very impressed with the bud structure, and yield. Good mold resistant strain too. Dense frosty buds that were easy to trim ! Clean high and VERY marketable. People LIKEY !! That's important !! Peace
Hey LS. Old school grower here, got my Agronomy Degree from Michigan State University in 1978 . Did you ever finish your Turf Degree ? We probably have a lot in common bruh ! Major League groundskeeper and Golf Course Super for over 40 years. Get a hold of me sometime ! Later
Feed at every watering is okay if your watering to runoff . I would still monitor RO for ppm levels . If you have the ability to know what the plant needs by observations, you are that much ahead of the game . Peace
Don't try to push seedings too fast . Check your roots for good healthy growth, then cut your fert in half for a couple weeks, also make sure your ph doesn't drift out of the 5.3-6.0 range. It looks to me like fert is building up in your coco. Peace