Yes, it is interesting that the sibling also appears to be doing well. I should note that the sibling is not wicking water from the rocks below - I water only enough to 1/2 submerge the rocks on the sibling.
However, both of these little phals were laggards that did nothing for 2 years and when I moved the one plant into s/h, the sibling all of the sudden started looking better and growing a bit. Perhaps he realized I was conducting an experiment?!! Anyway, both appear to be doing well but the s/h has slightly larger leaves than the sibling. I will try to post another update in another 2 weeks.
Fun to see what happens!
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