Decorative polished Black Pebble IV aquarium and terrarium stones Ilford 30–50 mm, 10 kg pack

Polished Black Pebble IV aquarium and terrarium stones by Ilford are smooth, rounded decorative pebbles sized 30–50 mm supplied in a 10 kg pack. These polished black stones serve as a stable ground cover for freshwater aquariums and reptile terrariums, creating an even substrate layer that supports plant placement and decorative layouts. Their polished surface reduces sharp edges and is suitable for visible aquarium floors, background landscaping and filtration bed topping where larger, uniform pebbles are required.

Advantages

The pebbles are uniformly sized between 30 and 50 mm and have a polished finish that minimizes abrasion to fish and plant roots. Their dark color enhances visual contrast with aquatic plants and terrarium elements while hiding organic debris between routine maintenance cycles. Supplied in a 10 kg pack, the stones offer a ready quantity for medium-sized layouts without the need for additional processing or sorting.

Suitable for

• Freshwater aquarium substrate layering and decorative floors
• Terrarium landscaping for reptiles and amphibians
• Top dressing for biological filtration beds and overflow chambers
• Decorative accents in paludariums and planted displays

Key specifications

• Pebble size range: 30–50 mm
• Finish: polished, smooth surface
• Color: black
• Package net weight: 10 kg
• Form: round/ovoid pebbles suitable for stable layering

How to use

Rinse the pebbles thoroughly with freshwater before introducing them to an aquarium or terrarium to remove any dust from packaging. For aquarium use, distribute the stones evenly over the substrate or place them as a top layer; avoid creating deep pockets that can trap detritus. In terrariums, arrange pebbles to create stable slopes, open drainage layers, or decorative groupings. Do not mix with sharp or chemically reactive materials.

Usage recommendations

When used in aquariums, perform regular vacuuming of interstices and partial water changes to prevent buildup of organic matter. For planted freshwater tanks, consider combining with finer substrate below the pebbles to support root growth. In terrariums, ensure drainage and humidity control by using a drainage layer beneath the pebbles where appropriate.