R.Moerings Pond Lava is a high-quality natural lava rock substrate designed for use in pond filtration systems and as a planting medium for aquatic plants. Its porous structure provides an enormous surface area that is ideal for beneficial bacteria to colonise, supporting excellent biological filtration and contributing to a healthy, balanced pond ecosystem. Pond lava is also an outstanding growing medium for marginal and deep-water plants, promoting strong root development while keeping the water clean and clear. A versatile, long-lasting product that benefits both your plants and your pond water quality.
Specially blended for deep water and marginal plants.
Will not affect pond life or promote algal growth.