Bonsai in a geometric terrarium

Planting material:

5-8mm lava rock

Dry sphagnum

Natural small diatomite rocks

The wood: shrump wood

the large rock: black lava

the plants: serissa japonica bonsai tree, Hydrocotyle sibthorpioides and fittonia.

please note: I made a mistake for during building this terrarium. Please do press hard and let the plant roots buried in soil (in a close terrarium, you just place it in the correct position and that is all).

to be updated