My skunk cleaner shrimp just died because he got stuck during his molt

I was wondering if I would have any problems introducing a new cleaner shrimp into the tank with my six line wrasse. I've read online that it's a bad idea to introduce new fish or shrimp to a tank with a wrasse because they are territorial. Because my wrasse is used to having the shrimp will he not kill any new shrimp I put in? Also will it need to be a skunk cleaner or could I try another type without the wrasse killing it?
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