Chem suggestions and grow tips for strains

[Treebeard]

I was posting to ask if anyone had grown these and what chems / ppm / ph lights / watering.. prty much anything.

"Deep Water Culture: beginner" right now I'm testing and perfecting things on bag seeds. so far i've experienced root root, ph wilting death, and spider mites

ordered from single

Positronics - Black Widow - Feminized
Mr Nice - Critical Haze - Regular