ok,i know you guys are probably going to think im nuts but! i was watching my turtles bask,and one of them walked up to the zoo med dock railing ( the black plastic part that holds the suction cups) he put his behind towards it and started grinding his back part on the railing almost like he was scratching his behind,i didnt know what to think of it so i stopped him from doing it.
is this normal? i mean,should i get another dock..or what?








