ive been looking for some motoros for a wile now and the only ones i can find arent in the best shape, there at a LFS in a small tank with several retics, and have vary faded colors the guy said its just because theres so many rays in the tank and wonce there in another tank the colors will come back, is this true or something bad? and if i do buy them should i dose them with prazipro or any other meds right away just in case? there going in a tank buy them selves for a wile then to grow out in my 125g