Something is destroying my Toadstool

[92CornerReef]

Hi guys, got this toadstool about 2 weeks ago and it has been doing great until i went out for the weekend. When i got back it looked like somethings was nipping at it. I'm not sure if that's the case but i have not seen anything actually bite it yet. Here are the before and after pics. I would really hate to see this coral die on me. Any ideas???

https://goo.gl/photos/UfFGghFjpZNKBV436

Current Livestoce:

Electric Blue DamselYellow TangHippo TangFlame AngelKole Yellow Eye TangChromis x2Sea Urchins x2Serpant StarCleanup Crew

 

[marrone]

Those look like pretty big bites. I don't think any of your fish would do that. It maybe leather nudi. Take the coral out and do a fresh water dip, and see if anything comes off. Also, inspect the coral, and see if you see anything on it.

Check the link below, it will help you see what you're looking for.

http://www.manhattanreefs.com/forum/pests/137226-leather-eating-nudibranch.html

 

[92CornerReef]

leather nudi? is that a pest? i will try that tonight as soon as i get home. thanks.

 

[marrone]

Yes, it's a pest and just like Zoa Nudibranches, and leather Nudibranches will eat the corals unless you remove them.