i had a sebae in with my carpet and they both did well. The only difference i could see is that i had much more live rock and they were very separate.. like one on each far side of the tank (in a 120g).
They were both ok but when i added a clarki clown to the tank (he hosted in both anemones) they both seemed to vastly improve from where they were before he was added. I am not sure if the hosting made them both more comfortable or what but there was a night and day difference in both anemones.
not sure if any of that helps but... that is my experience with 2 anemones in one tank.
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Nick
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