I would let the moss go to nearly dry between watering. Watering twice a day, in moss, may encourage rot. You want the plant to have to "reach" a bit to get some water, i.e., by making roots.
I would avoid anything other than plain water until it starts making new roots. Also, keep water off the leaves if you can.
The leaves look fine, and will probably give the plant enough energy to make some roots. The humid environment you set up should encourage root formation.
When new roots have formed, take off the moss, pot it in bark-based orchid media. Water very thoroughly (in the sink, water running through the pot), but do so only twice to three times a week (bark should be nearly dry, but not quite, before you water again). You can use the kelp etc. when the roots get going; ditto on fertilizer.
Good luck!
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