Guys - RW are generally developed (data used for RW platform) for wild fish (not fed pellets). So add that to the mix when assessing your fish. That is important for HSB because, unlike other pond predator fish, HSB can metabolize the carbs in fish food. HSB can become morbidly obese from carbs in pelleted fish food. A good example is the HSB in some of the Bass Pro aquariums. Their biologist noted this some years back and verified that was the issue.