setup using styro-foam
 

Ron, I have just discovered your site, and I am finding it very useful, I am a bit of a back yard inventor and I have an idea for building a hydroponic setup using styro-foam can you tell me if there is any problem with this material being used in hydroponics, If not I would like to build a proto type and try it out, Thanks and keep up the good work, Thanks Chris

Yes you can use Styrofoam packing peanuts also known as ghost turds or just about any inert porous material that can hold oxygen. All the medium is to hold up the plant. The growing comes from the nutrient solution and not the medium. Send us a picture if you are successful.