I think it would be fantastic to have a pair of breeding clowns in five BTA's and a Damsel hosting in a Carpet Anemone in the same tank.
I had two green bta and two red rose bta on the left side of my tank with one green bta on the right. I moved the right one to the left end and he has stayed in place over three months. The two green bta and two red rose used to one each until they split.
Anyways, I have a six year old tank with a regularly spawning pair of Tomato Clowns. I recently added a True Carpet Anemone on the right side and it has remained in the "hole" in the live rock where it anchors its foot. I have fed it silver side pieces wrapped in razor clam for five weeks since I put him in the tank. He is about six to eight inches with ripples and I got a large 3" Clarkii to host in it except the female Tomato chase him until he found a cave next to the left end where the BTA's are where he can reach out for food without being bitten.
To coolest thing is I finally found a large three spot damsel which could stick up to the pair of four stripers and I read on Drs. Foster and Smith the Domino Damsel will host in a Carpet Anemone when it grows. I am just hoping he will survive as I picked him up at the local fish store as a return because he was "mean". He was actually the exact size I was looking for to survive my tank with all the damsels, tangs, two starry blennies, three zebra dartfish, one splendid dottyback, and one female Fijian Dusky Wrasse.
I also have a Blackmouth Damsel which is a troll in a cave near the front center of the live rock along with two yellow tails, two Fiji Blue, and one Blue Azure.