Mountain Aquatic Rock Aquarium Decor Stone Fish Tank Natural Aquascape Hardscape
2 kg: Suitable for 15 cm / 0.5 ft aquarium length. 3 kg: Suitable for a 30 cm / 1 ft aquarium length. 5 kg: Suitable for a 30–60 cm / 1–2 ft aquarium length. Stones should be rinsed before placing them in your tank.