A drip or bubbler (DWC) is what you want. They can be made cheap and use hydotron rocks are reusable. drip systems. The six plant systems were what I used. Once you see one I made them for 30 bucks. Bigger ones just as easy. Go to slowes and look at rain bird and irragation parts and tubing. Gh is great I had very good results using lucas formula with just 1 part micro 2 parts bloom for flowering.

Superthrive is the shit but don't forget the cal mag plus it's a must.
The small rockwool cubes do well but you can go with peat pellets like jiffy 7 and split them wash in a bucket of water and just rocks. No mess.
Lets us know what's up and how your doing. It helps others too. Good luck.