Olibetta Donnerkeil Stones, 60 (1 carton)

Donnerkeil Stones have understated colours, visible layers and sharply defined edges. Use them to build detailed rocky landscapes and dramatic mountain-like formations without changing your aquarium's water parameters.

Product highlights:

• Distinctive layers & fractured edges: Fine lines and irregular edges give each piece a natural rock-face appearance.
• Subtle colours: Muted grey, brown and earthy shades create a calm, balanced look.
• More depth underwater: The colours darken when wet, bringing out the stone's fine layers and tonal variations.
• No effect on water chemistry: The rocks do not release substances into the water or increase its hardness.
• Versatile to arrange: Ideal for stacking or positioning at an angle, alongside pale sand, fine gravel, aquarium wood and plants.

Set contents:

• 60: 8 stones (6 M, 2 L)
• 80: 10 stones (7 M, 3 L)
• 100: 14 stones (9 M, 4 L, 1 XL)
• 120: 18 stones (11 M, 5 L, 2 XL)

How to use:

• Stack flatter pieces or angle them upwards, using larger rocks as focal points to add height.
• Place mosses or plants such as Anubias, Bucephalandra or Java fern between the rocks to bring the stone, wood and planting together.

A closer look:

Donnerkeil Stones provide a quietly coloured foundation with plenty of texture. Grey, brown and earthy shades combine with visible layers and fractured edges to create a natural rocky appearance. Underwater, the colours deepen and the lines become more noticeable, adding a sense of depth to the hardscape.

The varied shapes suit layered arrangements as well as steep, mountain-inspired formations. Pair them with pale sand or fine gravel, dark aquarium wood and lush green plants for a balanced finish. The rocks do not alter water parameters or increase hardness, giving you flexibility when planning your aquascape.