I think it just depends what your soil is like. My house is built on a riverbed. There is almost no soil at all, just rock. You have to dig with a crowbar or a pick ax a shovel doesn't work. And forget growing anything. That's why I bought some good stuff to use. I envy those people who can just use their own dirt.I use the dirt that is already in the area where I make my enclosure.
The fine fir bark is marketed as Reptibark and here on the East Coast of the USA it is the best option. I put down 3-5” of cypress (readily available here) then top with Reptibark. Performs well and looks awesomeThank for your reply. I think this post should have been made somewhere else, or it’s own thread. Anyway.
The main one available is called ‘coco husk’ I know the one you are taking about, and I don’t like it. The coco husk here is different than coco coir. It’s cut pieces of coconut husk about the size of small gravel. See pic, It comes in 3 sizes. The medium is what I have now mixed with a little bit of top soil for the indoor enclosure. It’s a little soft/spongy but fine.
Wish I could find orchid bark or cypress mulch.