First off Thank you if you purchased with us. Second what crew said, even though some people will say that they are hard to keep they are actually pretty easy. They don't require light for photosynthesis so yes you will need to target feed them. If you have a turkey baster that will work or if your tank is deep or the coral is in a hard to reach place you can purchase a sea squirt made by Kent. You can train your sun coral to open when you want if you feed it at the same time. Also if you have a lot of fish or shrimp make sure that they don't steal food from the sun coral since they take a little time to engulf their food. I think you'll be pleasantly surprised with your coral!
