Sea Hare problems

[Rambo64]

I recently just bought a new Sea Hare for my tank. Worked really well to get rid of some of the green hair algae. Last night it appeared that my nassarius snails were attacking him. I woke up this morning and looked into the tank and the hare was not moving and all scrunched up. he has what almost appears to be a cut on its back. it is about an inch long and is completely purple and he occasionally secretes a purple liquid. When I saw this I immediately put him into quarantine. I was wondering if this was something that was normal or does this mean the hare is dying? Also can the purple liquid harm my tank?

 

[melosu58]

Yes they can be poisonous if they are dying. It was a good move to move it out of the tank. Moving this to the sick fish and coral forum.