How do I encourage root growth?

[monivik]

Originally Posted by SouthPark

Looks good! Make sure there's some air-movement in there (to cut down or avoid fungus activity etc) - there probably is already (air movement).

The lid on the little "green house" has two openings on the top, that I closed. You can slide that green thing and close them or keep them open. Should I have kept them open? In that way some fresh air will come in.

Another question: Will it be enough keeping the orchids inside this? Will they get enough humidity or will I still need to water them as well?