In regard to the amount of nutrient solution needed, I use 5 gallons of total solution. The net pots will sit down in the solution at least an inch or two, maybe more depending on the depth of the pots you choose. It is recommended that you allow the water level to vary up and down by an inch or two so that the developing root system will get occasional exposure to air.

You can choose to use any nutrient solution you want. I chose an organic solution using the Botanicare products: Pure Blend Pro (Grow for veg, Bloom for Flower), along with Liquid Karma and Sweet. I use Dutch Master's Zone as a root conditioner to prevent root rot.

I'm short on time so I'll post more with pics a little later on today or tomorrow...
MVP Reviewed by MVP on . Building a Rubbermaid Hydro Bubbler Unit - Cheap and Effective Okay gang, here is a quick instructional thread on how to build a home made bubbler. I have seen friends use store bought units that are similar (google for Emily??s Garden). If you wanna see the concept, check out Greg Green's book "The Cannabis Grow Bible" where this idea is discussed as well. Getting started - first the parts list: (1) 10-gallon Rubbermaid Roughneck storage bin (Lowes $5.50) (1) ½ inch I.D. clear vinyl flexible tubing, 12? length (Lowes $0.50) (1) ½ inch Rating: 5