Gnat Nil 5L

$19.90 Inc. GST

2172 in stock

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SKU: 9327719002028 Category:
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Gnat Nil prevents Fungus Gnat (Sciarid Fly) adults emerging from hatching larvae and deters females from laying eggs in moist soil, potting mix or coco peat.

Fungus gnat larvae damage plant roots, particularly in moist root environments. Watch for wilting foliage and sluggish plant growth.

Gnat Nil is a permanent, weathered, highly porous, inert, long life pumice growing media.

Gnat Nil is a natural mineral, from New Zealand volcano’s. Is non chemical, zero toxicity and completely safe to use.

  • Ideal for indoor and outdoor plants. Perfect for cacti and succulents.

  • Adds aeration, rock minerals and beneficial microbes to the root zone.

  • pH neutral, non toxic and environmentally friendly.

  • Pumice is used by commercial horticulturists worldwide.

Directions for Use:

Apply 1-2cm layer to fully cover the surface in your growing containers, to act as a fungus gnat barrier.


Permanent, weathered, strong, highly porous, inert, long life growing media, extensively used in commercial horticulture for a range of applications.
pH 6.9 (near neutral out of the bag)
Non-toxic and naturally proven by nature as perfect for fresh water fish growth, abundant in volcanic regions like NZ, proliferating with Trout and aquatic life, swimming in Pumice lined streams.
Pumice is clean ready to use, out of the bag.
Abundant high quality, local regional sources.
500m2 / litre of surface area for optimised bacterial colonisation to enhance organic breakdown, just as nature intended.
Pumice per unit volume is inexpensive, sufficiently so, to be continuing to gain market share in the commercial horticultural sector, bonzai, orchids, fruit trees and numerous other specialist applications.
Pumice has a Zero Carbon Footprint. Minimal energy is required for simple screen grading, solar drying & packaging. Distance to Perth is just 3,175 Nautical Miles.

Compare this to glass which requires nearly half a litre of petroleum equivalent energy value, for each kilogram of glass products produced, energy needed to raise the temperature of both new and recycled glass to 1,575 degrees C the melting/forming temperature. That is not GREEN! Distance from LA to Perth is 16,666 nautical miles over 5 times more transport energy required than Pumice.

Best Drainage Secret for Houseplants—Pumice. Video Courtesy of Healthy Houseplants

Additional information

Weight 6 kg
Dimensions 23 × 32 × 7 cm