Hempy with Fox Farms nutes...2 quick nube questions

Tried to find this info and got some different answers. In a hempy setup should I use the FF hydro or soil feeding schedule (understanding that in either case I should start at lower concentrations and build up as plants dictate). 2nd...I think I have the "soil" grow big (bought the 3 pack and used on a soil grow...was going to use again on hempy bucket grow). Do I need to get the hydro version of grow big with hempy bucket. My assumption is yes as hempy is passive hydro, but would love to not drop the cash if it doesn't make a difference. Any thoughts? Thanks in advance!

I know the soil verson work in hydro , but since the water will not be moveing/flowing, i would think the soil one would work fine. I used grow big for soil in my hempy bucket (tomatos, i have grow cannabis this way)

Thanks...hempy is kind of hybrid of soil/hydro so it's hard to call which way to treat it. Nice to know you have had success though. I'll post and let everyone know how I do.