Interesting method, thanks for sharing!My problem was with flatworms in a Euphyllia, so I was able to dip the coral to get rid of some. Others I found crawling on the glass and was able to take them out by hand. I found if I positioned the coral near the glass they were more likely to crawl onto it. I was also able to dislodge a couple I found crawling on rock. I didn’t have a lot of them and they were of the larger sort so it wasn’t too difficult.