They are great for Target feeding corals and also killing aptasia anemonies with Lemon juice or Joe's juice.
I found that hydrochloric acid works well, dose in small quantities though! Nothing beats a soldering iron however.
I don't have a soldering iron, SBS. I have insulin syringes. So, I'll use what I got. But some of the funniest threads I've read have been aiptasia killing threads. People get really serious and evil. There was one where I couldn't stop laughing because he was so happy to be killing these things.
Then we've got Monochrome5 here making aiptasia cool by giving them a home.
You gotta do the SW again. It's fun. If I do another tank, I wanna do Red Sea... Some cool fish from that area.