Tom maybe you would like ebb/flow or PPKs. Since you want something more complicated than hempy.
I've tried coco hempy buckets side by side with coco PPKs (same light, res, etc) and the PPK growth rate was much faster. Maybe the hempys were watered too often though.
With PPKs it's recommended to use calcinated clay or diatomacous earth. I've used coco and it can work great but it can be risky as the tailpieces can clog and some have problems with nute deficiencies with coco in general.
For a 4x4 single plant in hydro you don't need anything bigger than 5 gallons for a plant container. A 2 gallon bucket is enough for a +1lb plant.
I've tried coco hempy buckets side by side with coco PPKs (same light, res, etc) and the PPK growth rate was much faster. Maybe the hempys were watered too often though.
With PPKs it's recommended to use calcinated clay or diatomacous earth. I've used coco and it can work great but it can be risky as the tailpieces can clog and some have problems with nute deficiencies with coco in general.
For a 4x4 single plant in hydro you don't need anything bigger than 5 gallons for a plant container. A 2 gallon bucket is enough for a +1lb plant.