The angle of the picture makes it decieving, as well she has probably 4" of her disc up the rear wall of the tank which makes the tank look larger, it is in fact only 30" wide but she still has a fair bit of room as you can see.
I really need to get my arse in gear and put some cash together for a larger tank, ive got room for a 9 foot long and 40 inch wide tank in the fishroom but having only bought the house 6 months ago my wallet appears to have become a black hole, money goes in and vanishes
It will happen eventually as i am obsessed with getting bigger and bigger tanks and nicer and nicer fish, it just wont be any time soon