The backround in that tank is black. I did use photoshop to process the raw file and also to clean up some of the bubbles and dust. Sorry if you don't approve Whiskers.Wet Whiskers;3536257; said:It looks to me like #18 has had the background photoshopped out. Is that allowed? It has aspects of a great shot, but, at least for me, that's not what photography is about.