Hoffman Volcanic Lava Rock (Black) 2.2lbs Black Sallow 4% Nitrogen: Promotes healthy

4% Nitrogen: Promotes healthy

providing an environment which helps reduce disease and insect problems

Ingredients: Made from fish emulsion

soft rubber feet which suppress vibration and it is ideal for aquariums or reservoirs 20 to 40 US gallons

Hoffman Volcanic Lava Rock (Black) 2.2lbs Black Sallow 4% Nitrogen: Promotes healthyHoffman Volcanic Black Lava Rock is a premium, natural planting media specially suited for succulents, air plants, and other drought tolerant varieties. Its porous structure improves drainage and enhances air circulation around roots, helping to prevent root rot and support healthy growth. Perfect for small scale planting projects, it encourages robust root development while maintaining optimal moisture balance. Natural black volcanic lava rock