When I said that, I meant very broadly. Generally, BTA tend to prefer crustacean meats, though depending upon collection site, previous diet, etc. This does not mean that they will only eat crustacean meats and not fish meats, but usually this is what they prefer. There are even some BTAs that won't even touch crustacean meat--only fish. But like I said, you can BROADLY predict what the preference might be based upon species.