If you want David to be jealous you are going to need the fine art of Photoshop...
He can explain it to you.... basically you start off with your rockwork, then super impose nice corals from the tank of the month on RC into your picture... then use unsharp mask at .03 radius at 30%. Adjust the color hugh to have a slight more tint of blue... then use the blur effect to distort the background so only the one item really stands out..
Then you can have the 100% natural pics david does HEHE.
I'm only kidding of course, but it always fun to give him a hard time.