Gnat Nix | Fungus Gnat Control, Larvae Killer & Soil Barrier Solution

Stop fungus gnats permanently, break the lifecycle & protect your root zone without chemicals.

Fungus gnat larvae feed on roots below the surface, weakening plants and creating reinfestation cycles sprays alone can't break. Gnat Nix is a university-tested physical barrier that blocks adult emergence, prevents egg-laying, and eliminates larvae, without a single chemical.

Why Gnat Nix Works

• Physical barrier control, university trials prove physical barriers prevent larvae from reaching the surface and stop adults from emerging, breaking the reproduction cycle at the source
• Multi-stage lifecycle disruption, larvae are blocked from developing, adults are prevented from emerging, and females are unable to lay eggs in growing media
• Chemical-free pest control, non-toxic, no pesticides, no residue in growing media; safe for indoor environments and ideal for long-term use
• Effective in wet & dry conditions, maintains performance in moist soil where gnats thrive and in drier conditions, across all grow systems

What You'll Notice

• Rapid drop in adult gnat activity
• Reduced larvae presence in your root zone
• Healthier, stronger root systems
• Cleaner growing media with no chemical residue

How to Use

• Apply evenly as a top dressing across the surface of your growing media
• Coverage, ensure full surface coverage for a complete physical barrier
• Best practice, apply after watering or lightly moisten media before application

Combine with controlled watering practices to reduce ideal breeding conditions and maximise results.

For a holistic approach to soil and grow medium pest prevention? Guardian Barrier Guard 250g uses long-lasting physical and biological protection at the root zone, the ideal companion to Gnat Nix for a complete pest management system.

Perfect For: Indoor plant growers, hydroponic and coco growers, grow tents, and anyone dealing with persistent fungus gnat infestations.

Frequently Asked Questions

How do I use Gnat Nix effectively?

For best results, apply Gnat Nix at the first sign of pest activity rather than waiting for a full infestation. Treat all plant surfaces including the undersides of leaves where most pests lay eggs. Repeat applications are usually required, follow the label's recommended interval between treatments to break the pest life cycle. Always apply during lights-off or in reduced light conditions to prevent leaf burn from foliar sprays.

Is Gnat Nix safe to use on plants in late flowering?

Check the pre-harvest interval listed in the product instructions before applying Gnat Nix to plants in late flowering. Most pest control products specify a minimum number of days between last application and harvest. As a general rule, switch to the most plant-safe options available when within 2 to 3 weeks of harvest. Contact us at hello@apexgrow.com.au if you need guidance on safe late-flower pest management.

Will Gnat Nix affect my beneficial insects?

Broad-spectrum pesticides can harm beneficial insects including predatory mites, lacewings, and ladybirds used in integrated pest management programs. If running beneficial insects, check whether Gnat Nix is selective or broad-spectrum before applying. Biological control programs and chemical pesticides are generally not compatible without a washout period between them.

Does Gnat Nix ship fast within Australia?

Yes, Gnat Nix ships from our Australian warehouse with fast tracked delivery Australia-wide. Most east coast orders arrive within 2 to 5 business days. WA, NT, and TAS orders typically arrive within 5 to 12 business days.