Fishblr, help! I just got this to give my plants a boost, and I am a complete novice. These questions may sound silly, but I really have no idea! I set up as directed. Now, when I put it in my tank, do I let the water fill up the chambers ? I. E. If I put it straight in it would be full of water, yes? Second, I turn the knob thingy and then I got a great big whoosh and big old bubbles coming out of the top hole. Is this correct? I then turned off the knob, and it said to do this twice a day. So, will the top chamber look empty? Atm it has a cm of water in the bottom. The bottom chamber is full of water. Have i set this up right? Tagging fishblr friends! what-the-fiish bettablogging kai-ni scalestails aquasplendens aquariadise aquarium44 hurr I can't think of any more! Apologies if this is not your area of expertise!