Condylactis anomones can be a little tricky, but not impossible. It's critical that you start with a healthy one. Like some other anemones, they have symbiotic algae. If you see a Condylactis that looks white or pink, this algae has died, and getting it to live any length of time is much harder. Choose on that is brown or brownish pink. Like all anemones, they require well established tanks and top quality water. This usually means waiting about a year after you set up the tank. The anemone should be ok with clowns and damsels, but it's not a favorite of clowns, so don't expect them to host in one, although sometimes they do.