MY brain coral is pissed

[BB23]

For the past like 3 days my brain coral has been "sucked" in and definetly not a happy camper. I think something is picking at it, specifically a damsel that i have had in the tank for quite awhile. He's been lurking around it "admiring" it's beauty. (I don't blame him) The damsel doesn't mean as much to me as the coral does (sad to say). However, i need a way to get him out of this 150 gal tank? Any suggestions as how to catch the damsel? Will he stop on his own if i keep feeding him until he's completely full? (i'm not even for sure if they know what full means because he is quite rotund)
NEED ADVICE. I LOVE THIS PIECE OF BRAIN!

Thanks so much (everyone has been so helpful on these forums)

-BB23

[amcarrig]

First, stop feeding the tank for a few days so your fish is good and hungry. Then, get some fishing line and the smallest fishook that you can find, shave the barb off of it for easier fish removal later, bait the hook, drop it in the tank and have a beer or two or three, depending on how long it takes the fish to take the bait. From what I've read, this seems to be the easiest way to get a damsel out of the tank. Fish traps don't work nearly as well and trying to net them in a full reef is impossible.

[glampka]

Stick of dynamite!! You won't have to move all the rock around.

[beireefer]

haha good one glampka, i netted my three-stripe damsel from my 70 US gallons just yesterday, u will need someone to help u a little, and u will need a red flash light (u could use a red plastic nylon sheet from a stationery shop to filter red light from an ordinary flashlight), now u would wait until the fish's in an open area, and just when it does, u will aim the flashlight to it's head and ur friend would turn off the room light, which will confuse her into going to a space that she doesn't know about but u do, mine eventually led herself to the front glass! and then i took it out, good luck

[coral reefer]

It tends to be easier to remove an unwanted fish after the lights have been off for awhile at nighttime!
The suggestion of not feeding your tank for a few days shows some promise as well as the damsel should be easier to capture as the alure of food will ultimately lead to its removal with a new IMO>