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Pumice Porous Lightweight Dust-Free Multi Sizes Succulent Orchid Bonsai Potting Medium 1

Pumice Porous Lightweight Dust-Free Multi Sizes Succulent Orchid Bonsai Potting Medium 2

Pumice Porous Lightweight Dust-Free Multi Sizes Succulent Orchid Bonsai Potting Medium 3

Pumice Porous Lightweight Dust-Free Multi Sizes Succulent Orchid Bonsai Potting Medium 4

Pumice Porous Lightweight Dust-Free Multi Sizes Succulent Orchid Bonsai Potting Medium 5

Pumice Porous Lightweight Dust-Free Multi Sizes Succulent Orchid Bonsai Potting Medium

Pumice is a naturally foamed volcanic rock formed by the rapid cooling of volcanic magma; it features a unique, interconnected honeycomb pore structure and a density so low that it floats on water. Free from artificial dyes and chemical coatings, it is safe for use in organic gardening, freshwater aquariums, and home landscaping.

Its abundant honeycomb pores offer two key practical advantages: in gardening, the pores retain moisture and slowly release nutrients while rapidly draining excess water, creating a breathable, well-draining environment perfect for plants prone to root rot, such as succulents, orchids, and bonsai; in aquariums, the rough, porous surface provides a vast area for nitrifying bacteria to colonize, establishing a stable biological filtration system that breaks down harmful ammonia and nitrogen compounds for long-lasting water purification.

We offer washed, dust-free pumice in a full range of sizes: 3–6mm ultra-fine granules for pot surface dressing, aroma diffusers, and micro-landscape filling; 3–10mm small-to-medium granules for soil amendment and aquarium biological filtration media; and large raw stones for rainforest terrarium landscaping, rockery construction, and lightweight architectural backfilling.

This versatile pumice is suitable for a wide range of applications: mixing with nutrient-rich soil to improve potting substrates; creating a drainage layer at the bottom of flowerpots; serving as biological filter media for shrimp tanks, freshwater aquariums, and paludariums; building terrain in reptile enclosures and rainforest terrariums; lightweight backfilling for rooftop gardens, terrace planters, and sunken bathroom floors; and acting as filler material for DIY micro-landscapes and aroma diffusers.

We provide small retail packs for home gardeners and aquarium enthusiasts, as well as bulk wholesale (by the ton) for nurseries, aquarium shops, landscaping contractors, and building material suppliers. Large orders support custom particle sizing and private-label packaging featuring your brand logo.

Product name:

Pumice

Brand:

QianLi

Place of Origin:

China

Packing:

Woven Bags / Ton Bags / Custom Packaging

ODM & OEM:

Available

Size:

3-6mm、6-10mm、10-20mm、2-4cm、3-5cm、10-20cm

Minimum order quantity:

500kg

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Appearance features

Natural volcanic coloration: Features a natural base of off-white and light gray without artificial dyeing; the surface displays natural light gray-white mineral speckles, offering an authentic, raw texture.

Fully interconnected honeycomb structure: The stone features a network of interconnected pores of varying sizes; it has high porosity with exposed surface voids, resulting in a rough, textured finish.

Ultralight foamed volcanic structure: Significantly lighter than ordinary volcanic rock of the same volume; it is buoyant enough to float naturally in water.

Comprehensive size grading: Available in three categories—ultra-fine, small-to-medium , and large raw stones for landscaping.

Natural irregular shapes: Unprocessed and unshaped, retaining raw fracture edges and angles for a realistic, natural look when stacked.

Durable and robust: Formed from a single piece of natural foamed volcanic rock; resistant to crumbling or pulverizing under normal use, ensuring a long service life.

Advantages

Pumice Porous Lightweight Dust-Free Multi Sizes Succulent Orchid Bonsai Potting Medium 8

Ultra-lightweight, reducing structural load

With extremely low density—weighing only about one-third of ordinary rock—it significantly lightens the load on floor slabs when used for rooftop gardens, terraces, or bathroom sub-floor fill; it also prevents plant stands from sagging under the weight of large potted plants

Pumice Porous Lightweight Dust-Free Multi Sizes Succulent Orchid Bonsai Potting Medium 9

Dual-function aeration and water retention, preventing root rot

Interconnected honeycomb pores store water and nutrients while allowing excess water to drain quickly, maintaining balanced soil moisture; this makes it ideal for succulents, orchids, and *Dendrobium*—plants with fleshy roots that are sensitive to waterlogging

High compatibility with water and soil; stable pH

Its natural volcanic mineral structure prevents drastic fluctuations in soil or water pH, making it safe for long-term use with aquatic plants, ornamental shrimp, orchids, and vegetables/fruits

Porous structure fosters beneficial bacteria for long-lasting water purification

The vast network of pores provides a substrate for nitrifying bacteria to colonize; placing it in a fish tank filter chamber helps establish a stable biological filtration system that breaks down ammonia (from fish waste), thereby reducing the need for frequent water changes

Application Scenarios

应用1 (3)

Construction and Landscape Engineering

Lightweight fill for planting layers in rooftop gardens and on terraces; Lightweight backfill for sunken bathroom floor areas; Construction of dry creek beds and small rockeries in courtyards, reducing the load-bearing burden on the foundation

1 (54)

Home Gardening and Commercial Nursery Cultivation

Substrate amendment: Mix with potting soil for succulents, orchids, and other plants to improve soil aeration; Pot drainage layer: Place at the bottom of pots to facilitate rapid drainage and prevent root rot caused by waterlogging; Soil surface dressing: Spread fine granules over the soil surface to cover bare soil, reduce evaporation, and prevent soil splashing during watering

2 (11)

Reptile Enclosures and Rainforest Terrariums

Create climbing structures and hiding spots in enclosures for geckos, horned frogs, and hermit crabs; Stack stones to create varied terrain in rainforest terrariums; porous structures retain moisture to maintain high humidity, while crevices allow for the planting of mosses, ferns, and epiphytes

应用5

Aquascaping and Aquarium Filtration

Biochemical filter media: Place in filter compartments to cultivate nitrifying bacteria and purify water in freshwater fish and shrimp tanks; Riparium and stream-style tank landscaping: Stack large pieces of lightweight stone to create cliffs and canyons, with natural cavities providing hiding spots for fish and shrimp; Filler material for ecospheres and desktop micro-landscapes

FAQ

What is the difference between pumice and standard volcanic rock?

Pumice is lighter and features a more porous, honeycomb-like structure with larger voids, offering superior water retention and breathability compared to standard volcanic rock. Standard volcanic rock is denser and harder, whereas pumice is better suited for growing orchids and succulents, as well as for lightweight backfilling in rooftop gardens.

Will soaking pumice in water for a long time alter the pH level of the aquarium?

Natural pumice is chemically stable; it releases only trace amounts of mild minerals and will not cause drastic pH fluctuations, making it suitable for the vast majority of aquatic plants, tropical fish, and dwarf shrimp. If keeping highly sensitive organisms, you can soak the pumice in fresh water for 24 hours before placing it in the tank.

Will pumice crumble or turn to powder after being used for a while?

Its natural volcanic foamed structure is compact, so it resists crumbling for 1–3 years under normal planting or aquarium conditions. However, if soaked for long periods in substrates with high fertilizer or salt content, replacement every 1–2 years is recommended; it can be rinsed clean and reused for short periods

Can pumice be used directly as a top dressing for succulent pots?

Absolutely. Using fine-grained pumice as a top dressing covers exposed soil and reduces moisture evaporation; it prevents soil splashing during watering while remaining breathable, ensuring succulent roots do not suffocate.

Do you support custom particle sizes and private-label packaging?

You can place direct orders for all standard particle sizes and large raw stones currently in stock. Bulk orders support custom particle size screening and branded retail packaging; please contact customer service for a detailed quote.

Does the pumice meet organic farming standards? Does it contain chemical residues?

This product consists of all-natural raw volcanic stone; it is free from artificial dyes and chemical treatments, does not leach harmful substances into the soil, and fully meets organic cultivation standards—making it safe for growing orchids, culinary herbs, vegetables, and fruits.

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