The camera is a Canon 10D. Those were taken with a 50mm f/2.8 macro lens. They are straight from the camera, not retouched in photoshop or anything.
"First attempt" was a bit misleading. It took me quite a bit of practice to get it all right, I think I took about 1000 photos of that clown fish I've only been at it about a week tho.
Those two above were actually taken with the tank lights off using just a flash (Canon Speedlite 550EX).