Pagoda Cups are often starved on accident by their keepers. I'll let Sara tell you what she did to rehabilitate this particular animal but the idea to keep in mind is that (as a general rule);
The larger the "mouth" that the coral has, the more particulate and zooplankton it needs in addition to Dissolved Organics and photosynthesis. And,
The more tissue a coral has, as the more particulate and zooplankton it needs too.
Yep. At first I fed the coral by hand (literallY) because it was in such bad shape I didn't think it would be able to "catch" anything. Now it does fine all by itself (catching food "junk" from the overflow).