These skull-shaped mineral blocks are long-lasting supplements designed to support isopods, springtails, and other clean-up crew in bioactive enclosures. Each block is made using a custom-balanced recipe developed to remain firm, resist crumbling, and hold up during shipping and humid enclosure conditions.
 
The skull shape adds enrichment and surface area, allowing microfauna to graze naturally over time.
 
Option 1: Calcium Skull Blocks
 
Formulated to provide a slow-release calcium source, these blocks help support:
Proper molting and exoskeleton formation
Egg production and reproductive health
Long-term mineral availability in bioactive systems
Best for:
All isopod species
Springtails
Maintenance feeding in established enclosures
 
Option 2 Protein-Rich Skull Blocks
 
This protein-enhanced version is designed to support growth, breeding, and colony expansion, especially during high-demand periods.
 
Formulated with added protein sources, these blocks help:
Support rapid growth and reproduction
Boost colony recovery after shipping or stress
Provide supplemental nutrition during breeding cycles
Best for:
Breeding colonies
High-density isopod cultures
Seasonal or rotational feeding (not constant use)
 
Notes
Place 1 skull per enclosure
Replace once consumed or significantly broken down
Protein version should be offered periodically, not continuously
Remove uneaten portions if excess moisture builds up
Natural color variations may occur due to ingredient differences between batches.