dens have canes; first plant, i would put a bag over it and skip the
fertilizer; back it off from strong light for a while and see if it
pups.
2d one, i agree, it needs longer roots, but it may not grow them while
it's happy in its bag; maybe pot up, but keep a bag over it for a few
months more.
or wait for the true den experts in the room to weigh in.
--j_a