I have five damsels(3all blue,1blue and yellow,1domino damsel)and I have the past few weeks now been trying to get rid of them because of the stress they give to my other fish.but with no luck,at first wanted to try to breed them but can't tell the sex so I want to rid of them.
If they are small you may have to do it the hard way. Empty the tank til there's just a little water left, remove the LR, then corner them and scoop them. A real PIA but it gets the job done when there is no other options.
"If your wife ever asks how much something was for your tank, just tell her you got it on sale and you had to have it! She'll understand"
I agree with Krypt that you may have to break down the tank to get them. If you're not in an immediate hurry and can invest a week or so, you may try feeding thawed mysis from a brine net. Most fish will swim right in after awhile once they equate the net to food. Luckily for us they have a long term loss of short term memory.
Question everything you see on the internet. ~ George Orwell
Hmm, unlucky, have you tried tricking them into it with food?.. Although they might not be interested or your other fish might do it instead, but I agree with Krypt, it looks like that's going to be your best shot at it.
Keep your friends close, but keep your anemones closer.