Rocks are mostly red, white, and blue with some large ones thrown in, plus a few shells. The fish like to hide in the sunken ship (2 parts), car, treasure chest, and palm trees.
The light is the standard light that came with it. We started with one filter, but increased it to two.
Advice:Add fish slowly...don't fall behind in cleaning it. Freshwater tanks are easier to keep up, but saltwater tanks tend to be prettier.