vidaXL Volcanic Rocks 10 kg Red 5-8 cm

【Biological Filter】: These volcanic stones act as a natural biological filter, improving water quality, boosting oxygen levels and controlling nitrates for a healthier habitat 【Product Specs】: Each package contains 10 kg of red volcanic rock, each piece measuring between 5-8 cm in size 【Natural Material】: Made from 100% natural, safe volcanic rock that won't affect water's pH or chemistry, suitable for both freshwater and saltwater environments 【Versatile Use】: Not just for aquariums, these red volcanic rocks can also be used for garden landscapes, planter beds, and other rock landscaping applications 【Decorative Addition】: Red lava rocks add a colourful, visually appealing focal point to your aquarium or fish tank