Q.How Can I Plant New Anthurium From My Existing One
Details about planting a new anthurium from existing one.

"...wait until the stem of the anthurium has grown up to 50cm or more in height and then take a top cutting, by slicing the woody stem of your plant at a length a little more than half of its height. This will encourage the lower portion to produce new off-shoots or runners. Plant the top cutting in potting mix or soil which drains well and keep looking after the parent plant. Ultimately the parent plant will develop new foliage along with the new top cutting. On the parent, any stem node or off-shoot with aerial roots or any slight indication of them is an ideal candidate for new growth, which can be further cut out and divided. "
The above was taken from this article: http://www.baliadvertiser.biz/articles/garden_doctor/2011/anthurium.html