We just got home from my sister in laws funeral to find two of our urchins dead, after further inspection, we find the culprit - our sea hare has split into two. Not sure how, not sure we want to know, but now we're trying to find out what to do with what is still alive. We're currently transferring to our newly set up tank, but how do we get rid of the toxin from the sea hare? Is the rock contaminated too?