I have a 30 gal with 2 saddleback clowns, neon goby, pajama cardinal and a tangoroa goby and pistol shrimp pair. In the past few days, I haven’t seen the tangoroa goby anywhere. It’s usually o and about and whenever the shrimp comes out the goby is with it. I thought maybe it jumped out, but I do have a lid and I checked the areas surrounding the tank. I thought maybe my rock flower nem ate it but I don’t see any remains. I have also lost two Midas blennys the same way. Anyone have a similar experience or know what’s going on? This is a really upsetting pattern. I keep loosing fish. The burrow is under the main rock structure and I don’t want to lift it because it may cause my scape to collapse. And I don’t want to hurt the shrimp what should I do? Any input is helpful. Thanks