Dictyoka, way too much, need advice

[strauss]

I have this:
[http://www.google.ca/imgres?q=Dictyo...3&tx=127&ty=45

I have left it alone in one spot now it's taking over. Phosphate reactor with new media. Everything is doing awesome other than it's getting to the point were it's smothering coral. I understand a sea hare would help once I trim it all back. I am not opposed to algae, it's a reef tank, but it needs to be kept in check. Any advice or help would be awesome or if you know where to get a sea hare.
Thanks

Brandon