Not familiar with your wavemaker, but the tentacles of the anemones should be moving pretty well in the current. If it is not attaching, then that is not a good sign. I have heard that it is a bad idea to mix different species of anemones in the same tank, but cannot speak from experience on that. Not sure about your lighting, you say 2 16w bulbs which would be 32w (not 320) which sounds way too low, and could be part of the issue.