Yes, to clarify my previous post, I was not suggesting you use less substrate (potting mix), but maybe a different type. Something chunkier, that provides lots of room for air movement. You don't want anything that tends to get compacted over time, and I suspect the peat in your mix could be of a fine enough texture that it will do just that. I'm not sure about the coconut husk. If it's actual chunky pieces, it's probably okay, but if it's the softer, finer stuff, I believe called coconut coir, that's not going to be optimal.
I use Orchiata bark, nothing else. It lasts for years without decomposing or breaking up. I use the large size for most of my Phals. Just be aware, though, that using 100 percent large bark will generally require you to water more often if you are used to using a more water-retentive medium.
Occasionally, if I have a plant that is very large and heavy, or one that has very few roots, temporary staking or stabilization with wires may be needed.
A couple other observations: The pot in your picture looks like it could use some more air holes. Also, you mentioned in your first post watering only every two weeks or so. The roots that can be seen through the sides of your pot in the photo are green. How long do they stay that color? They should turn a lighter, silvery color when they need water. If that's not happening, then I think your potting substrate is too tightly packed and the roots are not getting enough air.
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Cheri
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