using bubble buckets, get one of these: https://www.amazon.com/gp/product/B000HE9YEM/ref=oh_aui_detailpage_o00_s00?ie=UTF8&psc=1 and using holesaw, cut access hole in lid to change water, draw samples, add nutes, etc- the root ball will get so big it will help you access res.. good ppm/ec meter...