Essentially ....Don't stress it out more give it some food if you don't have a turkey baster put some food near him so it flows his way. Keep in mind how small his mouth is dont feed big pieces .then Google the coral on line to find out what he needs to eat and proper care .and tomorrow you can get the right products
most corals will do great with lighting alone. .
But knowing Duncan’s love food , and thrive from meaty foods only helps .
I remember years ago reading a article regarding feeding corals , anemones specifically .
The article suggested feeding a stressed or bleached anemone too much meaty foods only stresses it out further as it uses excessive energy to process the foods .