I have just bought my first 2 fish (clownfish) and as a newbie to the hobby, I'm probably getting a little over worried about everything:
My clowns tend to stay in one small area of the tank and only venture out to the other side of the tank once in a while. Is this ok?
I am also concerned for one of them as they usually sleep in the bottom corner in a small creater in the sand, but tonight one is in the top corner at the other end of the tank kinda sleeping in between the top of the heater (where the temp. controller is) and the glass ledge thing that goes around the top of my tank... Why?!!
Its a pretty small gap it puts itself in which doesn't look too comfortable

but the temp in the tank reads 77f on both meters either end of the tank...
Thanks!