I recently bought a montipora, it was doing well with good polyp extension up until this morning - I found one of my cerith snail had loosened the frag and ended up knocking it down off the rock directly into a hammer colony, I have no idea how long it has been in the hammer colony. Part of the montipora frag is now bleached, my question is will this bleached part of the montipora recover and grow new tissue over it or do I need to cut the bleached part of it away? I’ve never had another coral fall into another colony like this before - I also don’t really know how to prevent this from continually happening either, this is the third time I’ve found glued frags knocked off by cerith snails.