If you are weighing the best monotub for oyster vs BoomRoom II, you are choosing between two very different fruiting styles. On one side is Grower’s Select 28Q Cube Mushroom Monotub Fruiting, a compact 2-Pack monotub built around passive airflow with filter disks, and on the other is North Spore BoomRoom II Automated Mushroom Grow, a vertical automated tent with humidity and fresh air control.
Oysters love fresh air, steady moisture and room to release spores, so your setup matters more than with many other varieties. We assessed listed specs and grower feedback to compare space, airflow and daily care. Updated November 2026, this guide helps you match batch size, available space and in-depth time to the right pick.
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Quick Picks at a Glance
Prime MycoLabs Grower's Select 28Q Mushroom Monotub
Prime North Spore BoomRoom II Automated Mushroom Grow
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Pros
- Durable high density polypropylene tubs built for repeated use
- Includes filters, liners and plugs for a ready to use chamber setup
- Compact cube footprint saves space while still offering solid growing volume
- Stackable design helps growers scale up without needing more floor space
- Simple airflow management for both incubation and fruiting phases
Cons
- 28-quart size is limiting if you want large harvests or bigger flushes
- Requires separate purchase of grain spawn and bulk substrate to get started
- Cube shape offers less surface area than longer monotubs, which may reduce yield per tub
The MycoLabs Grower's Select 28Q Cube is a 2-pack of compact mushroom fruiting chambers aimed at home hobbyists and beginners. Each 28-quart tub is sized for 32 to 48 ounces of grain spawn plus bulk substrate, making it ideal for manageable small batches.
In use, the four air holes with 2.5-inch filter disks promote steady fresh air exchange without constant fanning. The included plugs let you seal the tub for colonization, then switch to filters for fruiting, which helps maintain proper humidity and cleaner conditions.
Built from high density polypropylene, these tubs feel sturdy and reusable rather than flimsy storage bins. The 12-inch cube format is space efficient, and the stackable base supports vertical setups to maximize closet or shelf grows.
The main tradeoff is size, as the compact cube holds less substrate and offers less surface area than large monotubs. You will also need to supply your own spawn, substrate and misting routine, since this is a chamber kit rather than an all in one grow kit.
Overall, this 2-pack is a practical, well thought out option for growers who value durability, cleanliness and space savings. If you want a reliable starter or expansion chamber for steady personal grows, it is easy to recommend.
Brand: MycoLabs, Model: Grower's Select 28Q Cube Monotub, Quantity: 2 Pack. Material: High density polypropylene in black with rectangular cube shape.
Capacity: 28 quarts per tub. Dimensions: 12L x 12W x 12H inches. Weight: 4.3 pounds. Special feature: Stackable design.
In the box: 2 monotub chambers, 8 filter disks, 2 liners and 8 plugs. Recommended fill: 32 to 48 oz grain spawn with 4 to 5 lbs bulk substrate per tub.
Pros
- True plug and play automation eliminates constant hand misting and fanning
- Vertical 5 shelf layout maximizes yield per square foot in a small footprint
- Clear vinyl walls make it easy to monitor pins, canopies and harvest timing
- Built in spore containment and runoff tray for cleaner indoor growing
- Purpose built for mycology with balanced airflow, humidity and spacing
Cons
- Large 18 cubic foot tent still needs dedicated floor space plus power and ventilation
- Clear vinyl interior requires regular cleaning to prevent fog residue and buildup
- Beginners may need time to dial in humidity and FAE settings for different varieties
The North Spore BoomRoom II is a fully automated 5-rack Martha tent designed to replace messy monotubs with a controlled indoor biosphere. It is built for culinary growers, hobby mycologists and anyone ready to move from manual misting to consistent, high yield fruiting.
Standout performance comes from the paired Myco-Mister II and FAE fan system. The mister holds humidity at 90 percent plus for strong pinning, while the fan exhausts CO2 to encourage thicker stems, larger caps and fewer aborts across flushes.
The design uses a sturdy metal frame with ultra clear heavy duty vinyl and five reinforced racks offering 18 cubic feet of vertical growing space. A negative pressure layout with filtration plus a Spore Floor tray helps contain spores and catch runoff for cleaner home use.
There are tradeoffs to consider. You will need a dedicated corner with power and ventilation, and the vinyl interior requires regular wiping to stay clear. Beginners may also need a few cycles to dial in placement and airflow for their specific varieties.
Overall, the BoomRoom II is a serious upgrade for growers who want automation, scale and visibility in one system. If you want dense canopies without daily fanning and spraying, this purpose built tent is an excellent long term investment.
How They Compare
Footprint and Growing Space
Grower’s Select 28Q Cube Mushroom Monotub Fruiting offers 28 Quart volume measuring 12″ x 12″ x 12″ OD, which keeps each chamber compact enough for a shelf or closet floor. North Spore BoomRoom II Automated Mushroom Grow goes vertical instead, with 5 reinforced racks and 18 cubic feet of growing space designed to hold trays, blocks and jars at once. For an overview of chamber types, browse the full Monotubs, Martha Tents & Fruiting Chambers collection.
Grower’s Select 28Q Cube Mushroom Monotub Fruiting comes as a 2-Pack and has a stackable base that can support up to 10 bins stacked atop one another, with each monotub able to support 150 lbs. North Spore BoomRoom II Automated Mushroom Grow is described as growing up to 9x more mushrooms than a standard tub setup by stacking upward rather than spreading across the floor. If you have a spare corner and want volume, the tent wins, while the cubes win for apartments and small grows.
Airflow, Humidity and Oyster Needs
Oysters demand constant fresh air exchange and high humidity to form full caps instead of leggy stems. Grower’s Select 28Q Cube Mushroom Monotub Fruiting uses 4 air holes fitted with signature 2.5″ Monotub Filter Disks for passive exchange, plus hole plugs to manage airflow during incubation. North Spore BoomRoom II Automated Mushroom Grow pairs an integrated Myco-Mister II with an FAE Fan to pin relative humidity at 90%+ while stripping CO2. Learn what daily humidity care looks like in this how to use martha tent for mushroom growing at home guide.
Grower’s Select 28Q Cube Mushroom Monotub Fruiting will need your attention for misting and fanning, and still air can slow oyster pin sets if you miss a cycle. North Spore BoomRoom II Automated Mushroom Grow automates that cycle and runs negative pressure to filter spores before they escape, with a Spore Floor bottom tray to catch runoff. The tradeoff is complexity, as the tent needs power, water refills and regular wipe downs, while the monotub has no cords or reservoirs to manage.
Setup, Daily Care and Learning Curve
Grower’s Select 28Q Cube Mushroom Monotub Fruiting arrives as high-density polypropylene bins with 8 Monotub Filter Disks, 2 liners and 8 Plugs included for two complete chambers. North Spore BoomRoom II Automated Mushroom Grow is positioned as plug-and-play, with ultra-clear, heavy-duty vinyl so you can monitor pin sets without opening the door. If you enjoy a simple, in-depth process, the monotub gets you fruiting faster with less to learn.
Grower’s Select 28Q Cube Mushroom Monotub Fruiting is rated 4.6/5 from 314 reviews, which points to consistent results for beginners running small bulk grows. North Spore BoomRoom II Automated Mushroom Grow is rated 4.1/5 from 12 reviews, which reflects a smaller owner base and a steeper setup curve with mister and fan tuning. You will spend minutes per day checking tubs, while the tent asks for weekly deep cleans, mister care and airflow checks in exchange for less daily fanning.
Build Quality, Capacity and Substrate Use
Grower’s Select 28Q Cube Mushroom Monotub Fruiting emphasizes durability and reuse, with sturdy walls, stackable design and liners to reduce side pins and ease harvests. North Spore BoomRoom II Automated Mushroom Grow emphasizes reinforced racks and clear vinyl walls for visibility, plus a bottom tray to protect floors from moisture. For substrate planning, see the best masters mix substrate for monotub picks to match nutrition to your chamber size.
Grower’s Select 28Q Cube Mushroom Monotub Fruiting lists an ideal quantity of 32-48oz (1.0-1.5lbs) of grain spawn per tub with 4-5lbs of bulk substrate, which suits small oyster review batches and staggered grows. North Spore BoomRoom II Automated Mushroom Grow is built to hold multiple blocks, trays and jars across 5 racks, so you can run oysters alongside other varieties. The monotub limits you per tub but is easy to replace or expand one bin at a time, while the tent centralizes your whole grow in one system.
Which One Should You Get
Choose Grower’s Select 28Q Cube Mushroom Monotub Fruiting if you grow small oyster batches at home and want a low-footprint, in-depth setup. You get two 28 Quart chambers with filter disks, liners and plugs for incubation control, and the 12″ x 12″ x 12″ size fits shelves and closets. It is ideal when you want to learn bulk substrate ratios, run one or two tubs at a time, and avoid cords, reservoirs and fan settings.
Choose North Spore BoomRoom II Automated Mushroom Grow if you want steady oyster harvests with less daily fanning and room to scale vertically. The 5-rack, 18 cubic feet tent with Myco-Mister II and FAE fan keeps humidity near 90%+ while managing CO2 and spores through negative pressure. It is the higher-end pick for growers with a dedicated corner who run fruiting blocks or trays continuously and prefer monitoring through clear vinyl.
Who Should Skip Both
Both options are indoor fruiting chambers, so they are not ideal for growers focused only on outdoor beds, logs or greenhouse production. This pair is also not a good fit if you only need sterile lab tools, spawn bags or pasteurization gear without a fruiting space. If you want help deciding between liners and tents first, read this monotub liner vs martha tent kit comparison before you buy.
Frequently Asked Questions
Can a 28-quart monotub fruit oysters well or do they need a tent?
Yes, Grower’s Select 28Q Cube Mushroom Monotub Fruiting can fruit oysters when you provide frequent fresh air and steady moisture through its 4 holes and 2.5″ filter disks. Small tubs work best for modest flushes and learning substrate ratios. For larger or continuous oyster blocks, a tent with active airflow is easier to maintain.
Is the BoomRoom II worth it over monotubs for oyster growers?
North Spore BoomRoom II Automated Mushroom Grow is worth it if you grow often and want automation, vertical space and spore control in one system. Its mister, FAE fan and 5 racks support higher volume than single tubs. If you grow occasionally or have limited space, monotubs give solid results with simpler upkeep.
Which is easier to clean and keep contamination-free?
Grower’s Select 28Q Cube Mushroom Monotub Fruiting is simpler to wash, dry and reset between runs thanks to smooth polypropylene and removable liners. North Spore BoomRoom II Automated Mushroom Grow needs more routine care for vinyl, racks, mister and Spore Floor tray. Consistent cleaning plus proper grain and substrate prep keeps either system running clean.
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