Goniopora (flowerpot coral) features long, daisy-like polyps in dramatic colors. The genus is notoriously challenging despite appearing easy - many specimens decline over 6-18 months even under apparently ideal husbandry. Causes are still poorly understood by the hobby.
Successful Goniopora keepers report: moderate PAR (75-150), direct moderate flow (not too gentle), heavy 420-460nm royal blue spectrum, and aggressive feeding (target-feed reef roids 3x per week). G. stokesi and G. lobata are the most-traded species; G. djiboutiensis (alveolopora) is sometimes called "ball goniopora" and is significantly easier.