How to kill sea spiders?

[Reefkeepers Archive]

Long story short, I've found sea spiders on my leptastrea colony, it's very secure so there's no way for me to take it out and dip, I've been talking with @ISpeakForTheSeas and we've found a few solutions, though I want to know if any of you know how to remove them. So far I've only seen 2 but hopefully there isn't more, they go into a crevice every time I try to use a pipette to remove them. I've so far just been waiting for one to walk to the top of the coral for easy removal, though I would like some suggestions. Thanks!

 

[Reefkeepers Archive]

Here's a photo