Beautiful root... I'd suggest repotting, or at least adding medium to cover it, give it the best change of capturing moisture as it grows. The species tends to ramble all over the place. I have one winding around a bulb pan, but have had good performance tying the long muliple-p-bulb growths to a slab of tree fern (hapu'u), with the bottom of the plant in a pot with small or medium bark. Then it can root wherever it wants to. I have a friend with a huge one, that started out about 10 years ago, in a 4 inch 10 cm) plastic basket, that is now about 4 feet (1.3 m) across ... by now the basket is irrelevant, it's in there somewhere. He says "Maybe I'll repot it next year..." If you can train it vertically, it will probably fit in your growing space better.
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