I’m a fan of using a kalkwasser paste. Cheap, easy and works pretty well. Helped a lot to get a veterinarian syringe/plunger thingy (tech term) from amazon for a few bucks. Can really target the suckers!
Thank you everyone, that blasted rock came with a coral Yellow Finger. Krazy Glue to the rescue!! I was able to get just that part out of the water without exposing the coral and sealed it in with Krazy Glue. Thanks for a great forum