No cage is too large for a parakeet, at least that's what I've always been told. Just make sure the perches are the right size because perches are really important. You might want to wait for other replys though.

Cloud and Sonny and Frosty(RIP)

Snow glistens upon the open field, I see your shape, I hear your chirp, and happiness fills my soul, knowing how happy you must be, to be away from me....RIP Frosty! I'll love you forever and for always!