Ebb and flow its simple and all parts at a DIY
Buckets, pump, fitting, hose, timmer, gravel I have set up a few. 50-200 gallons 5 buckets to 70 +- if you do a search on my Oldsanclem, and sanclem, its in there.
Donut shop used buckets are about 75 cents each, garden hose1/2 , T's 3/8 granit works as good a hydrocorn.
Main thing buy good pot growing ferts, and haul ass.
If your trying go with a 1-3 buckes go bubbler.
O yea one thing always buy a 2-3 times the flow that need and mag drive only. !!!!