I've created a program myself that will let you know every possible fish combination to come up with any given fish. In addition, you can tell the program what two fish you want to combine and it will tell you what fish you will end up with. It also contains a list of all 441 fish available. You can select all your fish you currently have in your tanks. Once you have done this, you can select any given fish and have all the fish combinations that will make that fish when mated. The resulting list will show in green any fish combination you have available based on the fish you have entered. Currently this application uses a SQL server backend, but if there is enough interest in this application, I may be able to change the data source so that I can distribute the app a little easier. Anyone interested? For now, if you would like a list of fish combinations that make up any given fish, just put up a post with the fish you would like to breed and I will tell you all the fish combinations that will make that fish.