Japanese Lava Stone

Each bag contains 10L unwashed Lava Stone in SML/MED particle size.

Crushed lava stone or its Japanese name, Fujizuna is an attractive and entirely natural product being a volcanic byproduct, for use in aquariums, terrariums, and forms an important component in bonsai tree and succulent mixes when combined with akadama and pumice.

This product is currently out of stock and unavailable.

SKU: AQ5002 Categories: , ,

Lava stone is very effective at creating the ideal living environment for your aquarium as due to its porosity it provides plenty of surface area for beneficial denitrifying bacteria to develop. This beneficial bacteria has the ability to improve water quality by removing nitrates. Shrimp will also forage on Lava stone as small particles of food may become lodged in the millions of open cavities.


  • +-50% smaller than 2.4mm
  • +-50% larger than 2.4mm, smaller than 5mm


  • +-20% smaller than 2.4mm
  • +-45% 2.4mm – 4.8mm
  • +-35% larger¬†4.8mm – 10mm

Additional information


2L SML 1-5mm, 2L MED 1-10MM, 5L SML 1-5mm, 5L MED 1-10MM, 10L SML 1-5MM, 10L MED 1-10MM