Generally speaking there are two main types of corals referred to as flower pots. The goniopora which has 24 tentacles per "flower" and the alveopora which has 12. The alveopora is somewhat hardier. Without specialized and attentive feeding both will wane within a year.
Some varieites of goniopora are a bit hardier than others with the small polyped reds seeming to be the most hardy. I would not recommend either goniopora or alveopora unless you have studied them well and are prepared to employ special feeding techniques.
If you have fish in your tank ,.euphylia, such as the frogspawn, hammer and torch will not require specialized feeding. Most corals like a bit of cyclopeeze from time to time though.