Keep your pond water clean and clear with this 10-liter volcanic rock lava natural pond filter material from Ubbink. These natural granules act as an effective filter and promote a healthy and balanced ecosystem.

• Rapid clearing effect: Lava is a natural volcanic rock used for biological filtration. The granules or fragments therefore vary in size, ranging in diameter from 16 to 32 mm. They quickly transform cloudy water into a crystal-clear oasis.
• Maximum surface area for bacteria to adhere to: the structure, which is both rough and porous, provides the best colonization conditions for bacteria to quickly establish a healthy bacterial colony in pond water.
• Convenient 10L packaging: Ubbink pond filter granules come in a convenient 10L container. They act as natural purifiers, helping to remove impurities and contributing to the general well-being of your pond's inhabitants.

Good to know:

• The Lava Pond Pellets should be placed in a net in the pond filter system, between the mechanically acting foam filters and the biologically acting filter material.

• Color: brown
• Contents: natural volcanic rock
• Grain size: 16 - 32 mm
• Rough and porous structure
• Maximum surface area for bacterial adhesion for a purifying effect on pond water
• Quantity: 10 L