The Houston Orchid Society Newcomers Group

In the shallow container, place 3 parts of charcoal and 3 parts of sponge rock, then add 1 part of metro mix on top. The amounts can be scoops, buckets or any other container for measuring volume. Just keep the ratio 3-3-1. Using your hands (rubber gloves make this step neater) roughly mix the 3 … ................
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