You want to be posting this in the nps thread.
Your frag looks more like tubastrea to me.
To get it used to being open:
in a small (ie med. yogurt container) put tank water and cyclopeeze. Put the frag in, cover it (don't snap shut!) and wait 30 minutes, before putting it back in the tank. Do this every day for as long as it takes - but you should see a response within a few days. After a few weeks, mount the frag, upside down or wherever, as long as there is significant flow.