Why the peach colour queen anthias keep on hanging around on the sand bed? It did'nt swim around the tank like anthias does, its the 1st day in this tank, but I got my others inhabitants to swim around on their 1st day though (I mean when I 1st bought them last time). Anyone bought an anthias with this kind of behaviour too? My water specs are ok. I thought it was sick at 1st, but when I tried to use a net to catch it, It swim ultimately fast, zoom and sand flew up, so I assume its not sick.