You could also buy a entire system for $35.00 from StealhHydro.com

In a DWC system the roots lie in a constantly aerated nutrient solution. It is the perfect system for beginners to learn the art hydroponics.
BONG0 Reviewed by BONG0 on . BODGE GROW ULTIMATE CHEAPO TEST EXPERIMENT THINGY STARTIN MY BODGE CHEAPO EXPERIMENT FOR FUN ONLY!!! AS IM WAITING FOR THE SUNNY DAYS:) :) ANYWAYZ this is wat im gone do #2-3 plants max # indoor cabinet grow # as i said this is a cheap bodge grow im only using 4 20watt cfls for the FULL GROW!.....expect nothing but ill hope for everythin Rating: 5