I have a pair of cleaner shrimp and a pair of blood shrimp. Well, had a pair of cleaner shrimp... this morning I had a pair and now I have one. One of the cleaners melted yesterday. I know because the old shells always end up stuck to the foam surrounds of my mp10's. I can't find him anywhere. I know when they molt they hide for a bit... usually. Mine don't. Further more no matter how hard they try to hide, my rock work is rather open. I can always see the antennae sticking out from somewhere. All of my fish are small. One ocellaris clown, one six line wrasse very small 1-1/4", a coral beauty and a naoko's fairy wrasse. I have a Colorado sunburst anemone, a pincushion urchin and a few emerald crabs. I don't think any of them nabbed him. I have been home all day. I would have seen the crabs eating him or something. I check through the back of the tank and in parts of the filtration. No luck. I have a lid. No evidence of a body anywhere. What the heck?