I just added some guppies to my 60 gallon about 45 minutes ago and they all are settled in but one all he does is swim back in forth into the glass I don't know if he's playing with his reflection or if he is sick. I know this is probably the wrong place to ask about guppies. I have a blood parrot about to inches a striped Rafael about an inch and a gold sevrum about an inch. All of the other guppies are schooling on the other side of tank