Ok so I just bought a yellow watchman goby three days ago to be exact. Goby was doing great no problems breathing or anything seemed to have liked my aragonite because he kept chowing down every few minutes lol. But here's my issue.....When I first got him into the tank after about three hours I looked everywhere and couldn't find him (keep in mind this is a nano, think of it as an aquapod type set-up just a different name) anywhoo, I found him in one of the reservoirs because it was my last guess. So I took him out put him back in the tank, the very next morning he disappeared again! This time he was playing mind games so I trapped off the top with a net for the time being and I checked the bottom to see if he could slip through anything and couldn't find a result so I just got back from work and he ended up in the same exact place! I don't know what's going on or why the hell he loves being in the dark, but someone please tell me what I should do for this little guy!!!! He's driving me nuts!