wot do u think of my diy carbon filter its made from the 2 pencil pots idea that some 1 pot up on grasscity and it works. the pencil pots were £7.49p 3 box of carbon £1.19each duck tape £1 pantie hoes were the miss and im not sure if she wash them hehe. of course she did... anyway it was so simple 2 make their is no way i would buy a proper 1 unless i start 2 grow more than the 3 plants i have now