I thought I'd share a pic with you all. A couple of nights ago I was up ridiculously late and checked in on my fish before going to bed. I keep this cool blue LED bubble curtain in there and sometimes keep the light on at night sans the bubbles.
Anyway, my plecostomus (around 12 inches long; just as mean and greedy as he can be) hangs out on the back wall often, and that night he was hanging upside down next to the LED light. It cast this WAY cool blue shade on him, and I tried to capture it as best I could (I could really use a new, decent camera, so please bear with the quality). I had to brighten it up a touch so that you could really see him, but the coloring and everything else is exactly as it was (click to enlarge):
It came out looking kinda dramatic! o_O
(by the way, if anyone knows exactly how to keep a solid image on a transparent mainbar, please let me know...)