So I have a couple DWC buckets going along side my soil as an experiment and I'm sold on growing hydroponically in the future. I will be building a 6 bucket RDWC system and will be growing trees vertically, long veg and big plants. Plants will sit in hydroton in 6" net pots. My question is how large should my buckets be for each site, right now I have them vegged 2 months in 5 gallon buckets and its getting pretty tight. Are there 10 gallon buckets out there, or should I upgrade to huge ass rubbermaid totes? The rule in soil is the bigger the pot the bigger the plant, I know hydro is different but I'm wondering what the sweet spot is