The teracota must be only "sweaty". Some ceramics drip too much. The ceramic pipe from my photos is bought from a wine shop.It is used to store a bottle of wine in it. I don`t know where Michael finds his pipes.
Here is what I grow on my nanovivs:
Nanoviv 1
- lepanthes telipogonifolia
- lepanthes calodictyon
- Physosyphon tubatus
- porpax sp.
- Platystele umbellata