I was feeding one of the anemones this morning when Marlin swam out of his cave. I guess he didn't know I was there, and when I pulled the baster out he freaked. He bolted - straight into the side of the tank. He hit it so hard I could hear the thud, more loudly than I would've thought possible. I have to admit that I did giggle at first (silly fish) but stopped when he started tilting sideways. I thought he was going to die right then and there. He recovered his balance after 15 seconds or so. He swam erractically for about an hour. He seems okay now, but I will be keeping a close eye on the knucklehead for a few days!