Nutrient problems

So ive been having issues with my setup and plant health and can’t figure it out. PH has been 5-7-6.1. Pics are of my mother plants. I thought Nutes may have been too high, but apparently it was just me
Was at 400ish and I double checked the pH and it was good. After 2 Rez changes I upped the nutes to 700ish and I don’t think they’re getting better. Growing in ebb and grows with hydroton, 4-6 15 min water sessions a day. Temps are about 80. Using GH with cal mag, armor SI, Floralicious plus, and florablend. Hoping someone has run into this before and can diagnose with the pics. Thanks for looking and let me know if you need any other info or pics

Ohhh. And just because I want you to be jealous I’ll have you know that they’re about 25” under a photontek 1000w co2 pro
Running at 50% just to be safe ….
thanks in advance for the help

More pics with the light off ….

Any ideas?

What is your water source?

water source is RO/DI. i verified that it is coming out at 0ppm. I never had issues growing in the past with RO and adding calmag. Only thing i can think is i added a DI filter after the RO system for my saltwater tank.... anyone know if this could have a negative effect?

I'd stop using the armor SI, Floralicious plus, and florablend. You don't need it. The base nutrients are plenty and since you're using RO the calmag as well.

ok that was going to be one of my next moves anyway..... as far as the PPM for mother plants like this, what would you guys recommend? According to the feedcharts, general hydroponics is recommending 700-900 for veg plants 3-4 weeks old..... would I be better off in the 400-500 range?