I just re-read your post.
" I'm planning to add mini pellia on it"
That is the same as coral moss in USA. I highly DONT recommend it. It is extremely slow growing, comes apart is tiny pieces if not on mesh and will give you oodles of trouble. I use it for my 'carpet' and tried putting it on trees multiple times and just ended up with angst.
Mini christmas moss is great for nano tanks... but coral moss is a bit of a nightmare and you may really regret it.