Originally Posted by kwaenz
Oh thanks. But is it ok not to spot feed it?
I'll answer this...
Duncan coral are not filter feeders.. so... no, it probably won't benefit from broadcast feeding. Not unless you broadcast feed your tank with larger then normal fish food. If the food is big enough, and happens to graze the duncans tentacles it will get stuck to the tentacles and then the coral will retract the tentacle and bring the food stuck to the tentacle to its mouth.
Spot feeding these corals is generally the most effective way to feed them.