should i change the water in a flower vase, or just add more?
 

should i change the water, if so, how often?

cut the bottom of the stems a little and change every few days...

Here ya go.

http://www.beautifulorchids.com/xoti...wers_care.html

http://www.murphybedsdirect.com/ChristopherLowell.jpg

You should change the water.

heres a couple of tips, change your water every day. Use warm water never cold it can put the flowers into shock and die. Cut the ends of the stems diagonal. Your flowers will stay fresh.

thanks :thumbsup