Nutriculture - Brain Bucket for RDWC ProOverview Designed for use with the IWS RDWC Pro System from Nutriculture, this premium brain bucket works hard to give your plants a constant supply of highly oxygenated, nutrient rich solution. General Information Deep water culture is a great way of accelerating plant growth and increasing your final harvest yield weight. It can be used with 25mm fittings and pipework and comes with a timer to set cycles of recirculation from your nutrient tank.