Is the colour dependent on the media or is it due to genetics?

I have:
#all green
#green leaves with red tentacles
#all red
#all deep red (maroon to purplish)

Just wondering if the maroon ones will be "clone-worthy"... [img]http://www.**********.com/iB_html/non-cgi/emoticons/new/smile_l_32.gif[/img]