I currently do soil and hempy but want to make a switch too rdwc sometime in the future. So I bought all the materials today to build a rdwc and fuck around a little. I want to build one five gallon bucket rwdc. Should I go with another 5 gallon bucket for my res or use a 18 or 20 gallon tote? My main goal is to learn to work out of the res (control ph, ppm, temps and do add backs). Will the 5 gallon be enough to get the experience to scale up later on. My feeling is go with the bigger res because it will be more stable but I would hate to clean up a newbie mistake.