Here is an update to my post. I was feeding my babies on different ends of the tank and they would get the food and then return back to their little corner. today, being so board from my no work day, thanks to the snow!, I did a 50% water change and added an additional filter (small, suitable for a 15 gallon) and today all of a sudden, they're swimming all over the place. They still go back to their corner, but it's so nice to see them actually utilizing the full 60 gallons and not just a small corner.
On another note, I'm really wanting another one, but I promised myself I would wait until March. this is going to be a very long 2 months.