Originally Posted by Redwolf91
Emerald crabs do molt, but I'm not sure I understand the rest of your post, are you asking if yours killed your blenny?
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Not asking if it killed the Blenny, I just seen it eating it. I'm asking if they molt because the man thought the emerald crab died so he picked out the crab and threw him away. Now The emerald card is a lot larger and made me wonder where it came from if it was thrown away. If he molted it explains everything. If they don't, then we have a hitchhiker.
I did read that emerald crabs do catch and eat small fish. The Blenny was not very large.