IIRC cattails grow far too big for a standard aquarium....even discounting height, they grow rather extensive roots that would risk choking nutrients away from any other plants you'd put in there.
lucky bamboo is actually an artisanal cultivation of dracenia sanderiana, a plant related to lilies. its leaves are cut in such a way that it grows a long bare central stalk rather than blooming leaves from the sides as the plant normally grows. it can be kept just fine in an aquarium as long as the actual leaf sprout at the top is not cut, and is kept above the surface of the water.
So remember, when you're feeling very small and insecure,
How amazingly unlikely is your birth,
And pray that there's intelligent life somewhere up in space,
'Cause there's bugger-all down here on Earth.
Loki/Grendel/Gail/Beowulf/Camilla/River/Bathory/Arwen/Lafayette/Deb/Jack Skellington (soon)