The only things that I know of that come close to what you're looking for (on this site) are the spreadsheets that people have developed to track the fish combinations. The fins and bodies are on different sheets, but you can locate a body type (e.g. Spotanus) and look at the rows and columns and see what you'd get if you bred it with every other body type. It works the same way on the fins sheet. Buttoneer has shared his spreadsheet with this community, and it can be found in the Spoilers thread of the Fish Tycoon Guide.