It's amazing to me how often those guys get mislabeled. A friend of mine ended up with a meatie that was supposed to be a white rock too. Only hers was a girl, and shockingly is still alive a year later. She lays well, but has to have extremely restricted food to prevent her from eating herself, literally, to death. She also struggles with sunburn because she has bald patches.
Since I'm pretty sure yours is a boy though, you might want to make arrangements since he will grow bigger than a female, and the chances of him surviving past about 12 weeks is slim. They commonly have leg problems and lose mobility, or just have a heart attack because of their size.