At the time, my Solana 34g was WAY overstocked and rampant with hair algae. What made it through the global warming was my cespitularia (THRIVING, has grown x 5), orange dendro (THRIVING, started with 1 head and now has about a dozen), one ricordea, sun polyps (some recession in tissue, but new baby heads sprouting), and a rock anemone (one head has now multiplied to 8-12 heads). I lost a beautiful acan colony, and a few zoa colonies, and a favia colony. Now that the hair algae is almost under control, I decided to add a few things to my tank last week: a few zoa frags and an acan frag. Although the acan frag is thriving, the zoas have since dissapeared off their frag discs. Since they have melted/dissapeared, I did find a HUGE aiptasia which was hiding in the rockwork inches away from the zoa (this thing was about 3" wide, but the only one I spotted in the tank). I have zapped it a few times but the thing isnt completely decomposed.
Here's my main question: could my HUGE rock anemone colony (it's on a 6-8" piece of live rock and completely covering every bit of surface) be affecting the zoas (even it is 6-8 inches away from other corals, and certainly out of physical reach even when fully extended)? Are these guys pests? My occellaris want nothing to do with it and it has faded since the heat incident (not sure if it's heat related, or due to the old bulb, but just changed to a Phoenix bulb and they are quickly regaining color). I'm pretty much ready to take the rock to an LFS, as it's not visually too impressive and it's taking up a chunk of real estate. The funny thing is when I bought the live rock, I was buying it for the beautiful zoa colony that was on the rock and thought the rock anemone was a huge paly. As you can imagine, there are no longer zoas on that rock...