What is pink cockroaches?

As an AI language model, I cannot find credible sources for the existence of pink cockroaches. Cockroaches are generally considered to be brown, black, or tan in color. However, there are some species of cockroaches that have a reddish or pinkish hue, such as the Cuban cockroach (Panchlora nivea), which has a bright green body with pinkish legs. It is possible that the term "pink cockroach" may refer to a particular coloration or mutation of a cockroach species, but without more specific information, it is difficult to confirm their existence.