I also don't think you will be able to hook him/her. I have had some great success with catching fish from my tank with a hook (don't know why I can't catch a darn thing in the wild). However, the smallest hooks I could find were #16 which are very small, but still probably too big for a your fish. I have cought sergeant majors, other larger damsels, wrasses, box fish (by accident and didn't release any toxins), but nothing that small. Keep trying the traps or else drain the tank.
Good luck

Any fly fishing shop that sells fly tying supplies would probably have a hook small enough. Not that I think you should. Though the thought of casting a fly into my cichlid tank has crossed my mind.

Caught mine i a fish trap from King Eds. Just put food in & be Patient.

Tried numerous traps and homemade traps. The problem is it never goes near them. It now waites for othrer fish to go in and get the food and it steals it from them. Pretty sure I dealing with a demon spawn hear.
Thank's Chris

Sounds like you have done everything short of taking the tops off cranking the heat and waiting for him to jump:-D I had to drain most of the water till mine was cornred in a small pool.... good luck and be patient... I ended up hitting everything in my tank and making a billion frags during the process :mrgreen:

Oh man I feel your pain. My 6 line is the worst fish ever. I tried to catch him and ended up stressing out all my other fish so I just left him. I hate that fish, it beats up on everybody, not to mention my hammer coral he ate. If you get him out let me know how you did it so I can try the same approach.