Blue Grub Farms

BSFL Coop — Black Soldier Fly Egg Collection System

When we started farming Black Soldier Flies, we found that egg collection can be a bit annoying, there was not an efficient way of collecting eggs out there. So we developed a system to easily coll...

$99.99

Printed in Aurora

Every part is designed in our backyard and printed in PETG at our small farm in Aurora, CO.

Made to order

We print to fulfill — no warehouse of plastic sitting around. Ships within 7 days of your order.

Real support

Stuck? Email us. We farm BSFL ourselves, and we'd rather help you succeed than ship you replacements.

Circular by design

Insect farming recycles organic waste into protein and fertilizer — the most sustainable feed on earth.

When we started farming Black Soldier Flies, we found that egg collection can be a bit annoying, there was not an efficient way of collecting eggs out there. So we developed a system to easily collect eggs that is efficient and aesthetically pleasing.

Maximize Your Production. Simplify Your Harvest. Introducing the BSFL Coop.

Designed for serious breeders, commercial operations, or anyone looking to scale their Black Soldier Fly Larvae (BSFL) production, the BSFL Coop is a professional-grade egg collection system that delivers superior yield and unmatched ease of use. Stop guessing where your adult flies are laying and start efficiently harvesting eggs for a continuous, robust colony.

Engineered for Optimal Oviposition:

  • Egg Cartridges The core of the BSFL Coop features eight modular cartridges, four 1mm and four 2mm, giving the flies different options for comfortable egg laying.

  • Minimal Disruption, Maximum Collection: This system is specifically designed to allow you to collect and harvest thousands of eggs with minimal disturbance to the adult fly environment. Simply remove a cartridge, and replace with a fresh cartridge or gently collect the eggs with a pen knife, and re-suspend it. Eggs typically hatch in 3-4 days.

  • Durable & Sustainable Construction:

    • Frame: The robust, yet lightweight, frame is crafted from Birch Dowels and held together with precise PETG connectors, providing stable suspension for the cartridges. Frame is designed to be placed above or inside attractant container.

    • Cartridges: Made entirely of durable PETG, these cartridges are built to withstand the humid conditions of an active BSFL breeding environment for years of reliable use.

The BSFL Coop provides the foundational component for reliable, large-scale BSFL production, ensuring you have a steady supply of new larvae to support your feed or waste management goals. Designed and made to order in Aurora, Colorado.

For more information about Black Soldier Fly Larvae, check out our BSFL Guide

*Product is made to order and may take up to a week to ship

Why it works

Built around how BSFL actually behave.

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Maximize egg collection

Gives adult black soldier flies the tight, dark crevices they instinctively seek — so more eggs end up where you can actually collect them.

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40× more calcium than mealworms

The larvae you raise have a calcium-to-phosphorus ratio ideal for reptiles, amphibians, and birds — no dusting required.

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Zero waste

BSFL turn organic waste into protein. The frass left behind is a rich organic fertilizer for your garden.

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Made in Aurora, CO

Designed and made to order in Aurora, CO — durable, food-safe PETG built to last in a humid breeding environment.

Ready to scale your colony?

Collect more eggs. Grow a stronger colony.

Field notes

Monthly notes from the farm.

One email a month. Setup tips, new gear, the occasional photo of our chickens losing their minds.