is it normal for an res to hid behind the filter? i have a 2 inch res in a 10 gallon tank w/a floating dock, he has plenty of room to swim around. when we first put him in the tank a week ago he did a lot of exploring, swimming around & basking on his dock. the last couple of days he's been hiding behind his filter (he's small enough to squeez back there). he'll come out to eat, so that's not a problem, i just wanted to know if i need to put a little place for him to hide out in the tank.
thanks in advance!



