When I first bought my rock I noticed a few hitcher crabs would come out at night but I didn't see them bothering anything just picking at the rocks and eating so I left them alone. Well now they have grown alot and are pretty big but still I haven't seen them bothering anything so I thought nothing of it. Well yesterday my favorite fish (Jawfish named Pablo) disappeared. I saw him in the morning and everything was fine but when I came home from work no sign of him which is very unusual, I look in his burrow and I see the big crab along with alot of hermits and snails hanging around the area of the burrow. I haven't found Pablo's body but I know he's gone. I don't know if he died or if he was killed either way I want these crabs gone just in case. I have heard of using a shot class and putting food in it and the crab will go in and not be able to get out. Anyone have success with this method? My questions are what kind of food do you use and how do you get it to stay in the glass? Also I know my cleaner shrimp would eat the food before anything else has a chance to. Anyone know of any other tricks?