cleaner shrimp problem?

[blueyota]

i just had the same thing happen to me... put two cleaner shrimp in and saw one or what was left of one two days after....do they molt there feelers to or just the shell and i haven't seen the other one now i a couple of days ..will coralbanded shrimp attack cleaners were about the same size or maybe there are to many shrimp in my tank 1 banded 4 peppermint was 2 cleaners in a 140 with 190lbs of LR...thanks and don't mean to hijack thread.......thanks