<a href=showthread.php?s=&postid=15444674#post15444674 target=_blank>Originally posted</a> by stunreefer
Absolutely yes you can.
When you take it out I recommend transfering it into a small tupperware so it never makes contact with the air. Place small amount of food in the tupperware and wait for the dendro to open. once it does... feed it! A lot! Let the polyps fully consume the food and let it sit for about 15-20 mins. After that gently return it to the tank the same means you removed it.
Peronally I only do this with damaged Tubastrea colonies that absolutely will not open their polyps at first in the display tank. This coaxes them out as you can douse them with tons of food and not polute your tank. After a while they begin to open on their own in the display and you can feed them there.
As pan_natan stated though, any time you move any coral around it will stress them, so I only recommend feeding it like this initially. Plus over time it will encrust onto a rock (if you let it) and continue to grow.
I always feed my fish heavily, then my NPS coral after that. Generally the fish leave them alone, if not I'll put a lil more food in for the fish. If worse comes to worse and the fish is being a PITA I chase it around with my Kent SeaSquirrt (which is what I use to feed my NPS coral).