Decorative polished aquarium and terrarium pebbles NB Minerals Red Pebble 20–30 mm, 5 kg bag

NB Minerals Red Pebble 20–30 mm are polished decorative pebbles supplied in a 5 kg bag, designed for use in aquariums and terrariums. The stones are inert, have a smooth polished surface and consistent size range of 20–30 mm, making them suitable as a visible substrate layer or as decorative accents. Their polished finish reduces dust and fine particles, provides an even appearance and helps achieve stable coverage for aquatic and terrestrial environments.

Advantages

The polished surface of these pebbles minimizes dust and loose fragments, reducing initial cloudiness in water and the need for extended rinsing. Being chemically inert, the pebbles do not alter water parameters, which makes them compatible with a wide range of freshwater setups and planted tanks. Their uniform size and rounded shape allow for easy placement, create consistent visual texture and provide stable footing in terrarium applications.

Suitable for

• Freshwater aquariums as a decorative top layer or mixed substrate
• Planted tanks where an inert decorative layer is required
• Reptile and amphibian terrariums for natural-looking ground cover
• Paludariums and vivaria for mixed aquatic and terrestrial landscaping
• Decorative displays, bowls and plant arrangements

Key specifications

• Material: polished natural stone (inert)
• Size range: 20–30 mm per pebble
• Finish: polished, smooth surface
• Packaging weight: 5 kg bag
• Color: red tones (natural variation possible)

How to use

Rinse the pebbles thoroughly under running water before first use until the rinse water runs clear to remove any remaining dust from handling and packaging. Spread an even layer on the bottom of the aquarium, terrarium or decorative container; for aquariums, a top decorative layer or a shallow substrate depth is typical, while terrariums may use a thicker coverage to support landscaping and conceal drainage layers. Avoid using these pebbles as the sole substrate for planted tanks where root-anchoring nutrients are required; combine with suitable planting media if necessary.

Usage recommendations

Monitor water clarity after initial placement and clean as needed. For aquariums, secure lighter decorations and plants to prevent displacement by filter flow. In terrariums, use a drainage layer below the pebbles where required to prevent prolonged substrate saturation. Store unused pebbles dry and protected from contaminants.