I loveeee the first pic laugh

and I have never seen a cage like a castle before..its soo cuteeeeee...and fitting them all in there hehe its like they are having a secrete budgie party laugh ...but is it too small? or are they loose all the time? cause i'm planing on having a few more, down the line...any tips from your experience?

A proud friend and companion of Nabeel (Adopted on the 7th Feb 2006, age 7-8 weeks)