The red on your Anthurium isn't a flower but a bract, coloured leaf, these do go green as they get older. I am rather surprised that you only have one bract though.

Anthuriums don't produce bracts, they produce spathes. Being a member of the aroid family (aracaea) this is perfectly normal for them to turn green and it's usually time to cut the flowers off to encourage more to develop.

Oops sorry... you are correct Andy! And not a mistake I should have made, ah well anno domini!

Thanks guys, for a reply to my question.
Kind regards.
Beautiful................