Line bottom 50 mm of perilite and hand water for first week or so then 50 50 coir perilite. 4 cinder block and a 50 gallon res. Just no organics in your solution. Top dress with compost tea once every other week and all the bio stimulants aminos and kelp in between.. Use a .25 drill and hit the flanges so you can put in steaks or use to tie off stuff. Run @ 1.2 ec and 5.5 ph to adjust for coir. Get extra root discs and double up. Roots will funk your valve up if ya don't. Also bake your coir
@220 for 20 min in the oven to kill any critters. Look forward to 10 plus ozs per unit if you utilize vertical lighting strain dependant naturally.. they are literally gods gift for all systems for ease of use. This level of automation will alow you to have a life.