Is there a fish  called a roach:

Yes, there is a fish called a roach. He is a silvery white fellow with a greenish back and his home is the fresh water of lakes and streams. A good sized roach may grow to be 11 or 12 inches long,

The pesky little insect which we call a roach is really a cockroach. He is a member of the cricket family who prefers life in the kitchen to life in the fields. Though his proper name is cock¬roach, it is quite correct to call him a roach. But    he is no relation to the fish of the same name.