I read a lot of people using FF for hydro. I use GH flora series its very easy to use in Hydro. You will get a ton of answers on which nute brand is the best. Next grow I'm gonna use House and Garden nutes. Lots of different shit out there pick and chose what you want at the end of the day its your grow.
If you are looking for something simple and easy just go with GH its almost fool proof.