I feel I must put a disclaimer to the post I placed above. Ray, of First Ray's Orchids who is very experienced in Semi-Hydroponics, recommends that anyone considering transitioning to Semi-Hydroponics should normally only change a couple plants over to begin with and get a feel for the different requirements that Semi-Hydroponics have over other types of media. This will put only a couple of plants at risk as a newbie gets their feet wet so to speak, no pun intended. There are certain requirements that need to be followed to ensure as trouble free a transition as possible for each plant and so under most circumstances the transition for a collection should be undertaken over an extended period of time.
Randy
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