Yes, - It's the one in starfish's post ......
3D Fish School ver 2.22,
www.geliosoft.com - The backgrounds are very basic, - to put it mildly! (ie, virtually non-existent!), the fish movement is a little unnatural, and the marine fish are not up to Jim's standard, - but it's worth taking a look at! - IMHO!
- if only for the freshwater fish. - Also there are a lot of settings!
These are the settings I used .......