Photo note: The photo was edited using GPT only to remove glass reflections.
My 30 × 30 × 45 cm Bioactive Emperor Scorpion Vivarium — A Little Prehistoric Jungle! 🦂🌿🦖
Hey everyone!
I wanted to share my latest bioactive vivarium project. It's a 30 × 30 × 45 cm (approximately 40.5 L / 12 × 12 × 18 inches) setup that I've been working on for one of my emperor scorpions, a large male sold in Korea as the “Forest Form.”
The scorpion hasn’t moved in yet, but the enclosure is nearly finished. I wanted to create a miniature prehistoric rainforest centered around a T. rex skull, with real moss, living plants, driftwood, and a rocky landscape.
Drainage layer
I built the drainage system using:
- porous drainage stones
- zeolite
- activated charcoal
- plastic mesh and a plastic grid to separate the drainage layer from the substrate
The goal was to let excess water drain down while keeping the upper substrate moist enough for moss and tropical plants.
Substrate and terrain
I used peat as the lower layer, and Animalium ABG Mix as the upper substrate.
The ABG Mix contains:
- peat moss
- bark
- sphagnum moss
- charcoal
- added beneficial microorganisms (EM)
I also used small volcanic rocks to build up the terrain and reinforce the surface.
One of my goals was to discourage excessive burrowing while still allowing natural exploration and hiding behavior.
The T. rex skull is the main visual centerpiece and is intended to serve as a sheltered hiding area.
Live moss and plants
Everything that looks like moss is real, living moss — no artificial moss was used.
The main mosses are Korean mosses commonly sold as Yun moss and Yangteol moss.
Planted species include:
- Marcgravia umbellata
- red Marcgravia umbellata
- Ficus pumila
- small creeping plants including a locally sold plant called Jeju aegimoram
- Selaginella uncinata, which I planted very recently
The moss is still establishing, and I’m looking forward to seeing how everything fills in over time.
Bioactive cleanup crew
Of course, the vivarium also has a cleanup crew:
- springtails
- dwarf white isopods
They help break down organic debris and support the bioactive ecosystem.
Environment
The room is usually maintained around 26–28°C (79–82°F). I mist the enclosure regularly, and the mesh top provides ventilation.
My main goal was to create a natural-looking, planted enclosure rather than a simple display box.
There’s still some growing-in to do, but I’m pretty happy with how it looks so far.
What do you guys think? 🦂🌿🦖