OverviewBlack Lava Stones are lightweight volcanic rocks celebrated for their rich dark tones and highly porous structure. Sold in 1 kg packs (typically 4–8 medium-sized pieces ~5–10 cm), they add striking contrast in planted aquariums while providing hidden crevices for fish and shelter for shrimp .Key FeaturesHigh porosity: Ideal for beneficial bacteria colonisation—enhancing biological filtration powerfully .Lightweight and stackable: Easier on glass, yet effective for building caves or rock structures .Dark aesthetic: Bold charcoal-black creates visual depth and makes plants and fish stand out .Aquarium-safe & inert: Won’t leach minerals or alter water chemistry—safe for all freshwater species .Plant-friendly texture: Great for anchoring moss, Java fern, Bucephalandra, and epiphytes .SpecificationsMaterialNatural volcanic lava rockWeight1 kg (~4–8 pieces)SizeApproximately 5–10 cm per pieceColorCharcoal black to dark greyPropertiesPorous, lightweight, inert, aquarium-safeWhy Choose Black Lava Stones?Supports biofiltering: Porosity encourages colony growth of nitrifying bacteria, improving water stability .Enhances design: Adds texture and depth to layouts—great for nature-style or cave features .Fish‑and‑shrimp friendly: Crevices offer hiding and grazing areas, reducing stress .Easy to use: Rinse and place directly—no soaking needed and safely stackable .Durable & reusable: Rinse-cleanable and perfect for redesigns without wear.Preparation & CareThoroughly rinse under tap water until clear to remove dust .Inspect for sharp edges—file or arrange to avoid injury to fish .Arrange stones directly in the tank; stack or group for aquascape structure.Attach mosses and epiphytes in crevices using thread or plant-safe glue .During water changes, gently rinse to clear debris without disturbing substrate.
