Hi Britta, i’ve set the airpump to go on for 30 minutes then off for an hour and a half so that should work a little. here’s a picture of the tubes in the reservoir http://img10.imageshack.us/img10/1554/img1312z.jpg . i’ve weighed the tube down but the airpump with a stone but the airpump pushes too much water [...]

that sucks. you may as well build your own. to be fair, the purchased ones do look very nice but the sense of worth comes from building it yourself. I’ve made a free standing one out of 3 2litre bottles and a 5litre reservoir. I used 3 plastic garden canes to brace and support it [...]

i don’t think it makes a great deal of sense either but so long as you have a tube that goes to the bottom of your reservoir and you stick a tube from your airpump, with an inflation needle, in to the reservoir tube then it should create an air bubble that pushes water up [...]

actually, i’ve had a look around. look on all the marajuana growing sites you can. it may sound silly but if these guys get it right then they make a lot of money! this site seems to have the same problems as you, have a gander and let me know what you think http://www.420magazine.com/forums/problems-pests-disease-control/96263-help-1st-time-hydro-grow-cool-cab-yellow-leaves-brown-spots-pics.html

http://www.ehow.com/how_4781641_treat-brown-spots-plants.html this might help but i’m not sure to be honest. do you think you might be using too much nutrients?

i’m in exactly the same position. i’ve only got the clay pebbles (a bit miffed that you can only buy a giant sack of them instead of a couple of litres) and the airpump off ebay from somewhere in China (hope it’s powerful enough) i’ve tried to create a free standing one with plastic bottles [...]

sie sind ganz wild (keine Beleidigung). Ich dachte, etwas in einem kleineren Maßstab. Sie haben Mikro-Tomaten gesehen? sie wachsen sehr kurz und dicht