The AquaEL Basalt Gravel 2–4 mm from Aquael is a fine and natural substrate that is distributed in the aquarium. The basalt-black gravel creates impressive contrasts in the aquarium due to its dark shade. The natural substrate does not contain any artificial additives or coatings, which is why it behaves in a water-neutral way and does not release any polluting substances. The substrate has a grain size of 2 – 4 mm and is also ideal for aquariums with shy fish that prefer a dark substrate for camouflage purposes. The rounded edges of the processed basalt gravel ensure safe use and prevent injuries to living creatures on the ground.

Features AquaEL Basalt Gravel 2–4 mm

• Natural substrate without artificial additives and coatings
• Basalt-black gravel
• Creates impressive contrasts in the aquarium
• Safe for floor dwellers with rounded edges
• Grain size: 2 – 4 mm
• The substrate material does not harden the water