OceanMax Volcanic Grey gravel is a substrate of uniform 3–5mm stones in a deep volcanic grey tone, sold in a 1kg quantity for freshwater aquariums. The dark, neutral base creates a striking, clean look and gives colourful fish and vibrant plants a dramatic backdrop in any fish tank.

It suits contemporary aquascapes, planted corners and modern displays. The even grain is easy to rinse and works with all freshwater setups.

Good to know:
– Grain size: 3–5mm — a consistent mid-size that lays neatly
– Quantity: 1kg — covers the base of a small or medium fish tank
– For freshwater aquariums; a dramatic base for planted and modern layouts
– Rinse before laying to clear dust