Name: Gaia Green Super Fly Insect Frass 3-1-2
Brand: Gaia Green
SKU: GAGSF17KG
Price: 15.95 USD
Availability: InStock
Rating: 4.8 (11 reviews)

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Gaia Green Super Fly Insect Frass fertilizer in a green pouch with purple leaf accents for organic gardening.

Gaia Green Super Fly Insect Frass fertilizer in a tall, brown paper bag with a purple and green label.

Gaia Green Super Fly Insect Frass fertilizer in a brown paper bag with a purple label featuring purple striped leaves.

Feed your plants and switch on their defenses

Gaia Green Super Fly is pure insect frass, the castings black soldier fly larvae leave behind after being raised on pre-consumer grains and food. Along with a gentle 3-1-2 feed, it is one of the only amendments that delivers chitin, the same material that builds insect shells and fungal cell walls. Plants read that chitin as a signal to prepare their own defenses, so Super Fly feeds the soil, feeds the plant, and puts it on alert.

Balanced 3-1-2 organic feed Rich in chitin Ecocert-approved for organic use

Free shipping on orders over $49

30-day returns on all orders

Serving growers since 2006

Why it's different

A standard dry fertilizer vs. Gaia Green Super Fly

Standard Dry Fertilizer

Feeds the plant and does nothing else
No chitin, so no defense-priming signal
Often fast-releasing and easy to overdo
Adds nutrients but no living biology
Usually mined or synthesized inputs
Little effect on the soil itself

Gaia Green Super Fly

A balanced 3-1-2 feed and a biostimulant in one bag
Rich in chitin, the signal plants link to pest and fungal pressure
Slow, easily released nutrients that are forgiving to apply
Carries beneficial microbes and fungi
Upcycled from pre-consumer food waste, fully renewable
Builds soil biology as it breaks down

What makes frass different: it's the chitin

Frass is insect manure. Because black soldier fly larvae constantly shed and process exoskeleton material as they grow, their frass is unusually rich in chitin, the tough compound that builds insect shells and the cell walls of many fungi. Almost no other amendment brings a meaningful dose of it to the root zone.

That chitin is the whole point. Plants have learned to treat it as an early warning: when they sense chitin around their roots, they read it as insects or fungi moving in and begin preparing their own defense chemistry before any real attack lands. Chitin also feeds the soil microbes that produce chitinase, the enzyme that digests exoskeletons and fungal walls. Gaia Green sells Super Fly as a biostimulant for this reason. It is less about the raw NPK and more about the signal it sends the plant.

What makes it different

Part fertilizer, part biostimulant, part soil food

Chitin that primes plant defenses Biostimulant

The standout ingredient, and what sets frass apart from every other dry amendment. As roots take up the chitin signal, the plant ramps up the natural defense responses it would use against real insect or fungal pressure.

A real balanced feed 3-1-2

Unlike a pure inoculant, Super Fly is also an organic fertilizer with nitrogen, phosphate, and potash. It supports growth across the whole cycle while the biology goes to work.

Living microbes and fungi

The frass arrives carrying beneficial bacteria and fungi that settle into the root zone and help turn the amendment, and the rest of your soil, into food roots can use.

Slow, easily released nutrients

The nitrogen splits roughly one part water-soluble to two parts water-insoluble, so a little feeds right away and the rest releases as microbes break it down. That makes it forgiving to apply.

Upcycled and renewable

The larvae are raised on pre-consumer grains and food, so the frass is a byproduct rather than something mined or manufactured. About as low-impact as a fertilizer gets.

Built to pair with worm castings

Gaia Green designed the two to work together: Worm Castings bring the microbial inoculant and organic matter, and Super Fly adds chitin, phosphate, and potash on top.

Specs

Numbers and details

Guaranteed Analysis

3-1-2 (3.0% N, 1.0% P₂O₅, 2.0% K₂O)

Derived From

Black soldier fly larvae frass

Organic Status

Ecocert-approved for organic use

Also Provides

Chitin, beneficial microbes and fungi

Outdoor and turf rates

Gardens and landscapes: broadcast and work in up to 1 kg per 2.5 square meters, about 2.2 lbs per 25 sq ft, up to a maximum of 4 kg per 2.5 square meters per year. Turf: broadcast up to 2.8 kg per 25 square meters, about 23 lbs per 1000 sq ft, then water in. Container and top-dress rates are in the usage steps just below.

Four ways to use it

1

Pre-mix into fresh soil

Blend 3 tablespoons per gallon, about 45 ml per 4 L, into potting mix or bagged soil at fill. Good for pots, planter boxes, and hanging baskets.

2

Top-dress through the grow

Scatter a light layer on the soil surface, scratch it into the top half-inch, and water it in. Reapply every few weeks while plants are actively growing.

3

Charge the soil early

Because most of the nitrogen is water-insoluble and releases slowly, work it in a week or two before planting so the microbes have a head start.

4

Brew a frass tea

Steep a few scoops in water and use it as a root drench. A quick way to carry the chitin and microbes through a whole tray or room of plants.

In the bag

What you're getting, and which size to buy

Every bag delivers

Pure black soldier fly frass, no fillers
Chitin to prime the plant's defense response
Beneficial microbes and fungi
Balanced 3.0% N, 1.0% phosphate, 2.0% potash
Slow, easily released feed that's simple to apply
Ecocert-approved for organic growing

Which size to buy

750 g / 1.7 lb: top-dressing and small container grows
10 kg / 22 lb: steady use across a full room
17 kg / 37.5 lb: beds, turf, and commercial grows
Pair with: Worm Castings, All Purpose 4-4-4, and Power Bloom 2-8-4

Not sure which size fits your grow? Tell us how many pots or how much bed space you're running and we'll point you to the right one. 716-217-0353 / help@happyhydro.com

Questions

Frequently asked questions

Will Super Fly get rid of my pests?

It's a biostimulant, not a pesticide, so don't expect it to clear an active infestation. What the chitin does is prime the plant's own defenses so it's better prepared for pressure, which is a plant-health and prevention play rather than a rescue spray. If you already have bugs, treat those directly and use Super Fly to keep plants resilient going forward.

Can I use it as my only fertilizer?

For light and moderate feeders, the 3-1-2 can carry them on its own with regular top-dressing. Heavy feeders in full flower want more phosphorus and potassium than a 3-1-2 provides, so most growers run Super Fly as part of a program and lean on Power Bloom 2-8-4 once flowering ramps up. Not sure which camp your plants are in? Call us and we'll help you sort it out.

How is this different from worm castings?

They overlap on biology but do different jobs. Worm Castings are mostly a microbial inoculant with organic matter and a little nitrogen, so they condition the soil. Super Fly adds the chitin signal plus available phosphate and potash on top of its microbes, so it does more feeding and more defense priming. Gaia Green designed them to be used together, not as either-or.

Will it smell or bring flies into my house?

No flies. It's dried, finished frass, not live larvae, so there's nothing in the bag that can hatch. The smell is mild and earthy, closer to soil than to manure. As with any organic amendment, keep the top of the soil from staying soggy and you won't invite fungus gnats.

Can I use it in coco or hydro, or only soil?

Soil and coco are the easy fit, in containers or beds. It's a dry amendment, so don't dump it straight into a recirculating hydro reservoir where it would settle and clog lines. If you run hydro and still want the chitin and microbes, brew a frass tea and dose that instead.

How often should I reapply?

Because it releases slowly, you don't need to feed it constantly. Pre-mixing at fill sets you up for a while, and a light top-dress every few weeks keeps fresh chitin and nutrients cycling through the root zone during active growth. Ease off as plants finish and stop taking up much.

What if I receive a damaged bag or the product isn't right for my setup?

If you receive a defective or damaged unit, email us a photo at help@happyhydro.com and we'll make it right immediately. For change-of-mind returns, we accept returns within 30 days for items in new, resalable condition. If you're not sure whether this product is right for your setup, call us first at 716-217-0353. We'd rather answer your questions before you order.

Why should I buy Gaia Green Super Fly from Happy Hydro instead of somewhere else?

Happy Hydro has been selling growing equipment since 2006. We've carried Gaia Green for years because the systems work great and customers who buy them leave happy. Have questions before you order? Call 716-217-0353 or email help@happyhydro.com. We're easy to reach and happy to help!

Why Happy Hydro

Why Buy From Happy Hydro

Happy Hydro began as a pipe dream in a garage and has grown into something built almost entirely on word of mouth and repeat customers. Rather than focusing on raising margins and obsessing over profits, we've always believed that the right combination of competitive prices, superior products, and world-class customer service speaks for itself. Our philosophy will never change: when you're happy, we're happy.

Our commitment

What you can expect from Happy Hydro

Real People, Real Growers

Our grower support team isn't a call center. They know the products because they're passionate about growing. Reach us Monday-Friday, 10 am-4 pm EST at 716-217-0353 or help@happyhydro.com, before you order or after.

Hand-Picked by Growers, for Growers

Every brand we carry was chosen by our founders because it performs. We only stock premium brands we believe in, and every item is inspected before it leaves our warehouse.

Fair Prices and Free Shipping

We work hard to keep our prices as low as manufacturers allow, and we include free shipping on orders over $49 so there are no surprises at checkout. Find a lower price anywhere and we'll match it.

Authorized for Every Brand We Carry

We're an authorized dealer for every manufacturer on our site. That means you get the full manufacturer's warranty on every purchase. No grey market, no expired stock.

30-Day Returns on Most Orders

Hard to commit to a product you haven't tried. Return most items within 30 days in original condition and we'll take care of it. Read the full policy.

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Volume and Commercial Pricing

If you're a commercial grower or putting together a large order, reach out before you buy. We have pricing available that we can't advertise publicly. Call 716-217-0353 or email help@happyhydro.com and we'll take care of you.

Questions? We're easy to reach.
Happy Hydro has been serving growers since 2006. Call or email our grower support team Monday-Friday, 10 am-4 pm EST, or email us anytime.

716-217-0353 help@happyhydro.com

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Gaia Green Super Fly Insect Frass 3-1-2

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