Fish is an aquarium simulator for Mac OS X. It allows the user to add fish to an underwater environment , feed them, and look at them through different cameras. The Fish show complex behaviors, like feeding, grouping according to their sociability, breeding and so on.

Fish was awarded with the Top Talent Quality Seal on 2004.
It’s been distributed on Magazines like MacWorld, Mac Univers, Mac Jack, and Mac Up, and translated to 5 languages.

It was downloaded by more than 25.000 people during its first week online. It’s been downloaded more than 150.000 times since then.

More information and download available here.

Short video of Fish in action.

User Interface.

Fish behavior hierarchy tree.