• GNATNIX! fungus gnat control granules 10L bag for indoor plants and hydroponic growing media
  • Close-up of GNATNIX! fungus gnat control granules top dressing for potting mix and pest control in growing media
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GNATNIX! | Fungus Gnat Barrier

$54.90
$54.90
Tax included.

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Shop 60
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Click & Collect: Available | Select at Cart
Pickup available at A-Grade HQ

Usually ready in 24 hours

A-GRADE HQ

140-148 Chesterville Road
Shop 60
Cheltenham VIC 3192
Australia

View store information
FAQ

Q. What is GNATNIX! made from?

GNATNIX! is made in the USA from 100% recycled glass by GROWSTONE®.

Q. How does GNATNIX! control fungus gnats?

GNATNIX! creates a physical barrier that prevents female gnats from laying eggs and stops larvae from emerging as adults.

Q. Is GNATNIX! scientifically tested?

Yes. Trials conducted at Kansas University showed GNATNIX! to be an effective physical barrier against fungus gnats when used as a top dressing.

Q. Can GNATNIX! be used indoors?

Yes, GNATNIX! can be used indoors in grow rooms as well as outdoors in gardens and greenhouses.

Q. Does GNATNIX! work when wet?

Yes, GNATNIX! remains effective whether wet or dry.

Q. How thick should the layer be?

Apply GNATNIX! approximately 2–3cm thick, or thicker if hand watering.

Q. What size bag does GNATNIX! come in?

GNATNIX! comes in an easy-to-apply 10L bag.
How To Use

Apply a layer approximately 2–3cm thick, or thicker if you are hand watering, to completely cover the surface of your grow medium.