So which ones are the best for hosting Occ or Percs?The BTA may not be accepting the clowns as BTAs do not host Occelaris or Percula clowns in the wild. To my understanding they will only host Maroons, Clarkiis and some other species in captivity but not the Occ or Percs.
In the background it looks like you’ve got an Occelaris which is why the Nem is most likely not accepting the clown as a guest.
I voted other since my tank is too young - and I would love to get an anemone for my two clowns. I understand that they might not host it, but would love to give it a try.