I'm setting up my orchidarium, the question I have is what type of water to use.
Can I use tap?
If not, can I treat tap with some conditioning agent to make it acceptable?
Or do I need to acquire distilled water?
Thanks.
Like the above posts, go with RO water to ensure that your setup lasts longer. When tap water evaporates it leaves behind minerals and certain chemicals that will eventually build up and harm the plant life.