I had 13 flowerpots in my 110g several years ago, unfortunately Steve was in the hospital for a week, I would leave to visit him in the am before I left for work, and would stay until midnight, or later, before I came home. (The lights were never on, when I was home) A baffle fell over in my sump/refugium and blew sand throughout the tank, and I lost most of them.
I rescued several of mine, definitely target feeding is important, but mine were under halides and T5s. They require moderate flow, but not direct. I also supplemented with Marine Snow. I had no Clownfish in the tank, because they like to host the flowerpot.