Majano?

Those good pics are of the type of anemone that I have found quite easy to remove manually. I pinch them between my fingers, being certain to have a good hold on them with my fingernails, and pull them right off the rock. It's easy. No messing with Kalkwasser paste or the stress of introducing a new fish. The trick is to not be afraid of them and to get a firm hold on them.

BTW Kleins prefer small pesky anemones to anything else. But when the anemones are gone they have been known to pick at LPS. Removing a Kleins is no more difficult than any other fish by skilled netting or a good trap.

Regarding telephone communications with a company representative, you might be surprised at how little some of those people really know and how often they are just making things up to look smart. I know, because I've done it myself. Since my foray into the world of the LFS I have come to realize how little I really know.

I'm sorry, each fish is different as well as the aquarium it goes into. I have the fish trap. Call me.

I would also try turning on the lights in the middle of the night and if the fish is anywhere a net can reach the lights blind it for a few seconds, hopefully just long enough to catch it.