Paphioboy, thanks for the concern. I have just recently revised my extra complex growing media and made it MUCH more simpler
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I got white pebbles which are about the size of two ping-pong balls and made them as the bedrock for the plant. The gaps between the big pebbles were filled with small 2-3cm diameter limestone. I think that the white pebbles are limestone.....because when I smashed it and checked the inside of the pebble, it resembled the real limestone that I have. Plus, the outside of the pebble was very dusty. White dust.
I filled up the 6 inches deep pot about two thirds with the pebbles and limestone. Then, I used a mix of tree bark, a little bit of dead ferns, lots of the small limestone, quite a number of charcoal and some sphagnum. The sphagnum is only to retain water since I found my previous media which was perlite, charcoal and limestone(which turned out to be granite) to dry up VERY fast. Even in my terrarium, the media dried up in 1 and a half days.
And about air ventilation? :biggrin2: I have the solution to that! My terrarium is a styrofoam box with four 8x5cm rectangular holes that I cut. When I opened all four, the ventilation was quite well. I leave two holes open during the day and one hole opened during the night. So far, I tested out for fungus by putting wet wood for nearly a month. The wood decomposed, but there was no sign of any fungus or harmful parasites. Also, I seem to notice that charcoal hinders the growth of fungus. Not sure about that, but is it true?
Cheers.....will post pics on my north after the plant has recuperated and started growing. Thanks for comments.