will my yellow wrasse eat my sexy shrimp?

Question
i just ordered some live stock from live aquaria, and a frag pack of small sps corals, i put a sexy shrimp in my twenty long with a yellow wrasse (that is where my girlfriend wanted him) and i haven't seen him since, i am afriad my wrasse ate him, or my fire goby, and the sexy shrimp was so awesome. i also got an emerald crab, and put it in the same tank, cannot  locate hime either, he was atleast as big as a quarter, so if he died after the acclimation process, i would think i would be able to spot him. i was trying ti figure out which protein skimmer to buy for my twenty tall, do you have any suggestions? i have figured out my algae is due to my over feeding, so i have cut back on how much i feed, and did a partial water change, also got 7 turbo snails put 3 in one tank 4 in the other, i also ordered these attachments for my fluval intake that has a cup on it to skim the top of the water, hopefully this will help also, do you have any ideas on how to frag these frags once they grow after a few months, so i can out some of them in my twenty long, is it even possible to frag a starburst pollyp, or whatever it is, it just seems like purple rock until my lights come on, then it is beautiful, i also got pulsing xenia, an a few others (they were not cheap) i ordered a refractometer to so i can get a better salinity reading, and just changed my activated carbon, the water is spotless. my girlfriend is picking me up some marine snow for them on her way home from work today....and i ordered more purple-up.
any input would be greatly appreciated!!!!!!!!!!
thanks so much....i don't know why i didn't put the sexy anenome shrimp in the 20 tall with the anenome, my girlfriend, was afraid the cinnamon's would eat him!

Answer
Hi Kyle. Sounds like everything is going good with your tanks! I am glad to hear it! Yes I would say that it is definitely a possibility that your wrasse ate your sexy shrimp. Wrasses are not really a reef safe fish when it comes to small crustaceans. Your emerald crab is more of a nocturnal species and will most likely only be seen at night after the light have been off for a while. I once had three of these crabs in my tank and thought they all died after not seeing them for months. Then one night all three of them were out and about when I shined a flashlight in the tank in the middle of the night. So they are very good at hiding. The sexy shrimp may be hiding as well but with a yellow wrasse chances are it is only hiding in the wrasses belly;)!
One of the best small protein skimmers I have come across is the aqua-C remora. Easy to use, very efficient, and one of the less expensive models out there. This one comes highly recommended to me ,for smaller tanks, by a colleague of mine who is a marine biologist! He uses them in all his smaller study tanks.
I know quite a bit about fragging corals. I sell the ones I have in my tank as they can get to be overwhelming. I have fragged finger leathers, kenyan tree leather, green sea mats, zoanthids, and xenia. basically if you can cut the coral with scissors you can easily frag it! Stony corals are a little more touchy to frag but it is even possible with most of them as well. With soft corals all you need to do it make a cutting of the coral at the base of the coral, where it is growing out of control. Most of these corals can be cut just about anywhere and regenerate. The cut piece should then be glued with a coral glue to either a frag disc or a small piece of live rock. Usually it only takes a few days to fully attach. You can also use a toothpick and a rubberband to attach a coral frag to a rock by staking the coral frag with the toothpick and using the rubberband to attach the toothpick to the disc or rock. once the coral attaches pull the rubberband and toothpick out. It really is simple!