Pineapples express autos

Hey yall newb here. I have a 12 bucket rdwc under led lights. 3 candy kush and 3 pineapple express. So the interesting thing is the candy kush have explodedicated with growth and are flowering where as the pineapples express all have yellow tinges, are short and stunted, and also are flowering but just don't look good I'm attaching pics any input appreciated. Idk if it's nutrient defficiency or the strain in hydro but ph is usually stable between 5.8 and 6.4. I used technaflora recipe for success for nutes and supplement Cal mag and hydroguard. Ppm is around 300 and I'm about 60 days in from seed. Again total newb so any help appreciated.....

More pics.....

This is the biggest pineapple but still tiny compared to candy kush

You'll probably get a better response rate if you post them under regular lighting. I'm new too but I've seen the more experience folks request non LED blurble photos when asked to diagnose something. Natural room lighting with tent fully open + camera flash might do it.

@slow_grow yea I kinda noticed that to . Thnx I will def post more pics when I get home tonight under regular lights and hopefully get some kind of help.

So heres more pics with better lighting. Looking for any advice as far as nutrients are concerned. These are pineapple express autos which look stunted and mal nourished compared to the candy kush which are all thriving. Any advice appreciated . Thnx

Here's a similar strain also very stunted and short with yellow leaves and purple stems idk what it is.....

Finally here's a similar larger plant same strain but same struggles. Maybe it's the strain not working in this system maybe it's the nutes idk I've done research some said phosphorous deficiency