Bulk Foamed Glass Pumice Multi Sizes Dust-Free pH Neutral Hydroponics & Soil Improvement Raw Growing Media
Made from recycled glass using a high-temperature foaming process, this product consists of lightweight, irregularly shaped, porous granules featuring an internal network of interconnected, honeycomb-like air pockets. It is a pH-neutral, chemically inert inorganic material that does not decay or degrade.
Available in a soft "macaron" color palette—including creamy yellow, pale pink, and light blue—the color is fused directly into the glass matrix; free from soluble dyes, the granules will not bleed color or contaminate the water when submerged. They come in various particle sizes to suit a wide range of applications.
The unique porous structure balances breathability with water retention, making them ideal for use as drainage layers in flowerpots, top dressing for succulents and orchids, hydroponic media, aquarium filtration material, and decorative elements for micro-landscape terrariums.5.0
Product name:
Foamed glass pumice
Brand:
QianLi
Place of Origin:
China
Packing:
Woven bag/Ton bag / Customized packaging
ODM & OEM:
Available
Size:
J1、J2、J3、J4、Recessed type
Minimum order quantity:
500Bags
design customization
Please fill out the form below to request a quote or to request more information about us. Please be sure to upload customized requirement documents or pictures, and we will get back to you as soon as possible with a response. we're ready to start working on your new project, contact us now to get started.
Please fill out the form below to request a quote or to request more information about us. please be as detailed as possible in your message, and we will get back to you as soon as possible with a response. we're ready to start working on your new project, contact us now to get started.
Appearance Features
· Irregular foamed honeycomb granules: Formed via high-temperature foaming, these granules feature natural, irregular shapes and surfaces covered in open, honeycomb-like pores, rather than smooth, pebble-like forms.
· Interconnected microporous structure: The granules contain a network of interconnected pores throughout, enabling simultaneous breathability and water absorption/retention.
· Colorfast and low-dust: The color is locked in through high-temperature sintering, ensuring no fading upon soaking; factory screening and rinsing minimize surface dust.
· Natural variation between granules: The foaming process results in slight differences in pore structure and shape among individual granules; this is a normal characteristic, not a quality defect.
Advantages
01
Lightweight and burden-reducing
Its foamed glass structure is far lighter than volcanic rock or gravel, helping to reduce the total weight of large potted plants
02
Dual breathability and water retention
Interconnected cellular pores allow for rapid drainage of excess water to prevent root suffocation, while simultaneously storing moisture to supply plant roots gradually
03
PH-neutral and chemically inert
It does not alter the pH of soil or water, making it suitable for the vast majority of plants; it withstands wet environments and never rots
04
Sintered color-fastness
The color is fused into the glass matrix; there is no dye leaching, ensuring no contamination of potting soil or water
05
Resistant to soaking and crumbling&reusable
Made of inorganic material, it does not disintegrate during long-term burial in soil or submersion in water and can be cleaned and reused
06
Versatile for multiple applications
Suitable for mixing into soil or top-dressing, pot drainage, hydroponics, aquarium filtration, and micro-landscape creation
Application Scenarios
应用1 (3)
Aquarium Aquascape
1 (54)
Water Filtration
2 (11)
Wastewater Treatment
FAQ
1
Will the color of the glass pumice fade when soaked in water?
No, it will not fade. The color is fused into the glass body through high-temperature sintering, not applied as a surface dye; soaking in water will not cause the color to leach out. New products may have a small amount of loose dust, which can be removed by rinsing.
2
Is glass pumice acidic or alkaline? Will it alter water or soil quality?
Glass pumice is pH-neutral. Under normal use, it has virtually no effect on the pH levels of soil or water, making it suitable for the vast majority of aquatic plants and houseplants.
3
Can glass pumice be reused?
Yes. Used glass pumice can be rinsed clean and soaked for disinfection before being reused for planting or filtration.
4
Can it be used directly in saltwater tanks?
Yes, its physical and chemical properties are stable, making it suitable for saltwater tanks; simply rinse thoroughly to remove loose dust before use.
5
Will it attract mosquitoes or insects?
As an inorganic material, it does not rot and contains no organic matter to support insect breeding; maintaining a clean environment can significantly reduce the presence of fungus gnats (small black flies).
6
Do you support customization (color, particle size, OEM branding) for bulk orders?
Standard specifications are available for immediate order; large orders support customized particle sizing, color matching, and branded packaging. Please contact customer service for samples and quotes.
7
Can glass pumice be buried in soil for long-term use?
Yes. Being an inorganic material, it does not degrade and can remain buried in soil for extended periods; it can be recovered, washed, and reused when repotting.
8
Why does the new material need to be rinsed?
Although washed at the factory, friction during transport can generate a small amount of fine dust; rinsing before use as a top dressing or in an aquarium prevents the water or potting soil from becoming cloudy.
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