Boomr Bin Mushroom Monotub Colonizing Lid

$14.99

Give your mycelium the environment it needs during the critical colonization stage. The Boomr Bin Monotub Colonizing Lid assists in the colonization stage by:

  • retaining moisture
  • increasing CO2 levels
  • sealing in a stable, sterile environment
  • keeping out airborne contaminants

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Let colonization do its work while keeping your monotub closed. The Boomr Bin Mushroom Monotub Colonizing Lid provides a steady cover for developing mycelium, with a clear view that lets you check progress without lifting the lid.

During colonization, keeping the tub undisturbed helps maintain the conditions inside. This lid makes routine visual checks easier, so there’s less need to open the bin and disturb the environment.

Made for the colonization stage, this lid is designed for use with a Boomr Bin Mushroom Monotub. It gives your substrate a covered space as mycelium develops, keeping your grow setup simple and focused.

The clear design offers a convenient window into the tub. Take a quick look at your substrate and mycelium as they progress, without removing the lid just to satisfy your curiosity.

New to monotub growing? This is a practical piece of mushroom cultivation equipment for beginners building an indoor grow setup, as well as experienced growers who want a dedicated colonizing lid for their Boomr Bin.

Why use a colonizing lid?

  • Helps keep the tub covered and the environment undisturbed during colonization.
  • Lets you observe developing mycelium without opening the bin.
  • Designed for the Boomr Bin Mushroom Monotub.
  • Supports a straightforward workflow for indoor monotub cultivation.

Use it during colonization, when your substrate is developing mycelium, and follow the growing instructions for your particular setup. This lid is a focused accessory—not a complete monotub or grow kit—so pair it with a compatible Boomr Bin and the rest of your cultivation supplies.

Thoughtful equipment can make the waiting stage easier. With the Boomr Bin Mushroom Monotub Colonizing Lid, you can keep your tub closed while still keeping an eye on the progress inside.

How to use

Secure the Colonizing Lid to your Boomr Bin after mixing your colonized grain spawn and substrate. Its low-profile design creates a compact, enclosed environment for colonization while making it easy to stack or store multiple bins. When you're ready to introduce fruiting conditions, swap the Colonizing Lid for the standard Boomr Bin lid.

Note: to maintain an ideal environment do not open the lid during colonization.

Features & Benefits
  • Increases CO2 during the colonization phase
  • Helps maintain ideal conditions during colonization
  • Retains moisture while substrate colonizes
  • Helps reduce exposure to airborne contaminants
  • Easy transition from colonization to fruiting
  • Low-profile design saves space and makes bins easier to stack
  • Durable and reusable
  • Designed specifically to fit the North Spore Boomr Bin
Complete the kit
Boomr Bin

Boomr Bin ($24.99)

TUB25 applied Save $4.98
Automated Boomr Bin Components

Automated Boomr Bin Components ($149.99)

Monotub liners (5-pack)

Monotub liners (5-pack) ($14.99)

Frequently Asked Questions

A colonizing lid helps create a stable, enclosed environment while mycelium spreads through the substrate before fruiting.

It is designed specifically for the North Spore Boomr Bin Mushroom Monotub.

Use it during colonization, after mixing your grain spawn and substrate. Once fully colonized, switch to the standard Boomr Bin lid for fruiting.

The Colonizing Lid is designed specifically for the colonization stage, helping retain moisture and maintain stable conditions before fruiting.

No. It is an optional accessory that gives you a more dedicated setup for the colonization stage.

It serves the same purpose as the Max Yield Colonizer Lid we previously carried, but it is designed specifically for the North Spore Boomr Bin.

No. The Boomr Bin Colonizing Lid is made specifically for the North Spore Boomr Bin and is not compatible with Max Yield Bins.

Cluster of brown-capped mushrooms with long, light-colored stems against a white background.

Maximize Results, Minimize Risk

Maximize your yield while simplifying your mushroom grow with our beginner-friendly, patent-pending Boomr Bin Monotub System. This self-contained mushroom fruiting and incubation chamber was designed by mycologists so you have the most successful grow you can

Backed by Our 100% Grow Guarantee

Every kit comes with our 100% guarantee. With over 250,000 happy growers, North Spore is trusted by hobbyists, chefs, and mycologists alike.

Reviews

  • 5 stars: 3 (100%)
  • 4 stars: 0 (0%)
  • 3 stars: 0 (0%)
  • 2 stars: 0 (0%)
  • 1 star: 0 (0%)
K
Keith Burt

Finally! These allow me to use one of the cabinets in my garage for colonization now since they are low-profile. Way to go North Spore team!

Hi Keith, we're thrilled to hear the design works well for your garage setup! Thanks for choosing North Spore and for sharing your experience.

P
Philip

Great Product..!

J
John

gonna help immensely with my monotub colonization.

Thank you for your review, John! We truly appreciate your support.