I think LRB has blues and yellows in a tank and gets tons of greens..... I don't see a lot of shrimp breeding back to wild... Similar to other species it takes awhile to get completely wild unless your stock has odd genes. Bettas for example don't turn out wild breeding 2 different colors normally... but if I breed 2 blue bettas, I may get some more wild looking or washed out colors because blue is not dominant.