I am not sure of the process, but I know that coconut husk chips (chc) need to go through a washing process before you can use them in a potting medium. If you use the coconut husk fiber instead of the chips, you will need to water the orchid daily. I am sure someone else will be able to give advice on how to wash/rinse the chips as I remember someone asking about it recently.
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Becca
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