I have read that about them. My rock and sand was loaded with them Majanos/Aptasia not sure which,...I think Aptasia. I keep hitting them with kalk until I finally beat them. I just put all my rock back in the tank for the 2nd(hope the last) time:headwally:. I was treating it with LC and GFO to stop PO4 leaching,...real pain! This time I made sure it was completely cured before I put it all back. Now its basicly dead rock. If I were to do over from the start,...I would not waste the money and time on "live rock" You end up bringing to many unwanted critters in with it,...much better to add yourself the whatever lifeforms you want.
What are the dates for Macna? I'm heading to Breckenridge through Denver on the 15th for my stepsons wedding.