I have a couple damsels that have been nothing but trouble as of late. They actually bit and took a chunk out of my wrasse RIP. My LFS said they'd take them for store credit but I can't figure out how to take them both out. Their home is in the heart of my rock base and I don't want to pull out all the rock and ruin the rest of fish homes. Are there any tricks to getting them out without disrupting the whole tank. They're too quick and smart for just netting.