I seem to remember
someone mentioned that they had theirs growing in water, don't know why one
would feel the need to do that. Unless they wanted a mosquito farm. The
tree doesn't need it.

Around here most of the trees grow in water. this allows them to grow with less
competition from other trees. there are trees here grow standing ten feet of
water from where a damn was consructed and flooded a large area. all the other
trees died (except for water tupelo) Each of these trees and or stand of trees
is an oais in the lake with many trees growing on the base of the cypress. If
you do want to display a cypress in it's natural flooded state you can grow
azolla on top of the water, this will stop mosquitos and make the water look
like a swamp covered with plants around the base of the tree. also growing the
tree in standing water will cause it to have a bigger base which in turn makes
it look like a more mature tree. Cypress look better as slightly bigger than
most bonsia because their needles are a bit too big to look right on a really
tiny specimen. If you are really lucky maybe you'll get some cypress knees
around teh base of your cypress if it is grown in water. Very cool but it takes
a long time if ever! around here there thousands of acers of cypress growing in
flooded land or land that is flooded twice a day by the tides. Be careful of
salt, cypress don't like salt and will die if exposed to very much of it. You
can tell how far the salt water comes inland by looking at the stopping point
of the growth of the cypress.

Moon