So, I'm beginning this blog entry before I upload my pictures. A few days ago I wrote up a blog entry showing a picture that made me think my tank had microbubbles in it. To date it appears better to me, but for comparison's sake I took a few pictures of the tank last night. In one picture the scenario is comparable to the scenario under which the picture from my other post was taken. In the other I have turned off the protein skimmer and then actually shut off the return (for those unfamiliar ...