Sure, that's a good one. I got that. ;) (I love my rock shelf. It's the best. IMO.

-Thanks Gabe)
The pest idea is awesome too - it glorifies the beauty of the things we hate, a lovely dichotomy. Some pests can be beautiful, but we're bent on eradicating them. I love my 'dirty' tank and all the weird microfauna challenges it brings. All part of the fun. Some of my favorite things in my tank came as weird unknown hitch hikers.