I haven't had the tank light on for a couple of days because it has been hot and the light just makes it hotter in the tank. But it cooled off this evening, so I turned on the light. Then I noticed air bubbles glistening between my plastic plant leaves like dew drops on a web. I studied it for a while. It is pretty wavering the the current. But I do wonder what it is that the air bubbles are stuck on. I did a big grav vac and water change earlier in the day so I am guessing I stirred up something that is cleaning to leaves and catching the bubbles but I cant see anything but suspened bubbles. Well...just thought I'd share the strange thing I was seeing in my tank with the rest of you. 
