Before you guys start throwing tomatoes just hear me out. I bought this sucker recently and I am so far not impressed and since I am now $100 in the hole I would like to try to make this thing work before I try other options (i.e. true DIY or the infamous L2). I will keep you all updated with any changes I make to improve this thing but I would first like to hear from anyone else that has had successes with this device. Today I got fed up with the fact that nothing has grown on the special "green grabber" screen after almost a week of start up. So I started examining how much flow actually went into and out of it. Not to my surprise this thing really just recirculates water inside of itself because the inlet and outlet are extremely tiny. So what did I do? I completely gutted out the top and bottom of the enclosure to try to allow more flow on and out. I'll keep you all updated on this improvement but again I am more interested with anyone else's successes with this thing The main reason why I liked the concept was that the light is outside of the tank and behind glass. Other than that.....well....it could use improvement IMHO. Since I can't seem to find solid results on this device I post it in the experimental section of this forum.