Okey doke, I realize I'm probably just worrying too much, but two days ago I bought a red pygmy goby. After releasing him into the tank after acclimation he disappeared into the rock and I haven't seen him since. I figured it's probably normal while he settles into the tank, but can't help but wonder if something may have happened. Several feedings have gone by now with no sign of him. I realize that with him being so small, that even a 30 gallon tank like mine could easily hide him for good lengths of time. Anyone ever had one of these take a while to settle in and start coming out at feeding? The only fish I can imagine that might bully it is my six-line wrasse. Any feedback appreciated!