Automated Monotub Kit 44Q | MycoClimate Mushroom Grow Kit – Midwest Grow Kits
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MycoClimate™ 44Q Automated Monotub Mushroom Grow Kit – Temperature & Fresh Air Control

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$10900
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Medium 44-quart automated monotub with water-bath heating, filtered fresh air exchange, a 900-lumen LED and programmable timer. Includes 1 Premium 5-Grain spawn bag and 7.5 lbs of bulk substrate — just add spores or liquid culture.

🔥 446 purchased in the last 30 days
⭐ 1,500+ units sold

Description

The MycoClimate™ 44Q Automated Monotub Kit is a complete, climate-controlled mushroom grow kit: a medium 44-quart monotub that sits on a heated water bath, a quiet air pump that pushes filtered fresh air in on a timer, and a 900-lumen LED grow light, plus one Premium 5-Grain spawn bag and 7.5 lbs of pasteurized bulk substrate. Just add spores or liquid culture.

MycoClimate automated monotub in full fruit on its heated water-bath base, with the air pump and filtered air line beside it
Steady heat and fresh air, on autopilot.

A 44Q monotub on a heated water bath with a timed, filtered air pump and an LED, plus spawn and substrate. Just add spores or liquid culture.

A passive monotub lives at the mercy of the room it sits in. MycoClimate™ puts a heated water bath under the grow chamber and a quiet pump on a timer, so temperature and fresh air stay steady from colonization through the last flush, even in a cool closet or basement.

  • Medium 44Q monotub
  • Water-bath heating
  • Filtered active FAE
  • Spawn + substrate included
  • 44QMedium monotub
  • 50WDigital heater
  • 900 lmLED grow light
  • 1 bag5-grain spawn
  • 7.5 lbsBulk substrate

Is this all you need? Our beginner’s guide to growing mushrooms at home shows what comes with this kit, the one thing you add, and the extras that make a first grow easier.

Why growers choose MycoClimate™

Fruiting monotub sitting on the MycoClimate water-bath base with the air pump beside it
Even water-bath heat

A digital heater warms about 4 inches of water in the lower tub, so the chamber above stays steady even in a cold basement or garage.

Lid plug with the filtered air line and diffuser stone
Filtered fresh air on a timer

A quiet pump pushes air through a filter-lined hose and out a diffuser stone, clearing CO₂ without the humidity crash of opening the lid.

MycoClimate monotub with the LED grow light mounted above the lid and switched on
A light made for the lid

The 900-lumen LED mounts on the lid or a nearby wall with an adhesive adapter, and it runs cool enough that it won’t warp the plastic.

What’s in the kit

Everything in the MycoClimate 44Q kit laid out: assembled tub, bulk substrate, spawn bag, heater, air pump, tubing, filter disks and accessories
  • Medium 44Q monotub growing and incubation chamber (18" × 15.75" × 12") with a second tub base underneath that holds the water bath
  • 1 Premium 5-Grain spawn bag
  • 7.5 lbs Midwest Select Bulk Substrate Casing Mix, pasteurized and ready to use
  • Custom digital thermometer & hygrometer that reads temperature and humidity from outside the tub
  • Grower’s Select Smart 50W digital submersible aquarium heater with adjustable thermostat
  • Ultra-quiet electric air pump
  • Silicone air hose lined with HEPA-grade fiberglass filter material, with an air diffuser stone
  • Heavy-duty 24-hour timer for the air pump, with multiple programmable cycles per day
  • 900-lumen dual-spectrum LED grow light (110V, 36 diodes) with outlet adapter and adhesive mount
  • Pre-cut custom folded black monotub liner, food-safe HDPE and BPA free
  • 4 monotub filter disks & plugs, plus a custom hole plug with a pre-drilled tubing inlet
  • Hospital-grade gloves and alcohol swabs
  • 8 oz fine-mist spray bottle
  • Printed step-by-step grow guide + instant video library access

You provide: spores or liquid culture to inoculate the spawn bag.

How it works

The heater and pump hold the conditions. You handle the spawn and the harvest.

Digital aquarium heater installed in the center of the lower water-bath tub 1Fill the water bath

2.5–2.75 gallons of tap water (about 4 inches) goes in the lower tub. Sink the heater in the center and set it for your room temperature.

Air pump, blue air line, center-hole lid plug and diffuser stone laid out together 2Fit the lid and air line

Snap in the plugs and the filter disk, run the air line through the center-hole plug, add the diffuser stone and plug the pump into the timer.

Gloved hand injecting a liquid culture syringe into the port of a 5-grain spawn bag 3Inoculate the spawn

Inject spores or liquid culture into the 5-grain spawn bag and let it colonize inside the warm chamber at 74–76°F.

Gloved hands mixing colonized grain spawn into bulk substrate inside a black-lined monotub 4Spawn to bulk

Break up the colonized grain, mix it through the 7.5 lbs of substrate in the lined tub and level the surface.

Small mushroom pins forming across a fully colonized monotub surface 5Colonize, then pin

Lid on, 74–76°F, no light needed. In 10–21 days the surface turns white and pins start to form.

MycoClimate monotub in full fruit with the LED on the lid and extra filter disks fitted 6Fruit and harvest

Swap two plugs for filter disks, run the LED 12–16 hours a day and pick as the caps flatten. Expect 2–4 flushes.

Dial in the settings

Heater setting by room temperature
Your room Set the heater to
Below 60°F 78–80°F
60–70°F 76–78°F
70–74°F 75–76°F
Air pump timer by stage
Stage Pump runs
Incubation 30 min every 8 hrs
Early fruiting 30 min every 2 hrs
Heavy fruiting Continuously

The heater setting is the water temperature, not the air in the tub. Water runs a few degrees warmer than the chamber above it, so trust the thermometer inside the tub: you are aiming for 74–76°F during colonization. If it reads above 76°F, drop the heater a degree or two. Each notch on the pump timer is 30 minutes; heavy condensation inside the tub means it needs more air.

Mist the walls, not the substrate. Small beads of moisture on the surface are exactly right. If it looks dry, lightly mist the inside walls of the tub and let humidity rise on its own. Spraying the substrate directly is the most common way growers bring bacteria into a healthy tub.

See it before you buy. Our illustrated MycoClimate setup & instructions guide walks the full cycle with photos, from filling the water bath to cleaning up after the last flush. You can also watch the full setup video.


How the system fits together

Rear view of an assembled MycoClimate monotub showing the lid plugs, air line and pump The air line drops in through the center-hole plug in the lid.
Two tubs, one system

The lower tub holds the heated water and the monotub sits on top of it, so warmth rises evenly through the floor of the grow chamber instead of blasting one side. The pump stays outside the tub; only the filtered air line goes in.

  • Works in basements, garages and closets
  • Heater, pump, light and timer are reusable
Already own a tub?

The 44Q Automation Upgrade Kit adds the same heating, air and lighting to a Medium 44Q Grower’s Select monotub you already have.

For your next run, the Medium 44Q refill kit restocks spawn and substrate.

Specifications

Specification Detail
Grow method Climate-controlled monotub cultivation
Monotub Medium 44-quart, 18" × 15.75" × 12"
Heating Water-bath base with a 50W digital submersible aquarium heater, adjustable thermostat
Water bath About 2.5–2.75 gallons (roughly 4 inches deep)
Air exchange Electric air pump, silicone hose lined with HEPA-grade fiberglass filter material, air diffuser stone
Timer Heavy-duty 24-hour programmable timer for the air pump (each notch is 30 minutes)
Lighting 900-lumen dual-spectrum LED, 110V, 36 diodes; run 12–16 hours a day while fruiting
Monitoring Digital thermometer & hygrometer
Target temperature 74–76°F colonization, 72–75°F fruiting
Spawn included 1 Premium 5-Grain spawn bag
Substrate included 7.5 lbs pasteurized Midwest Select Bulk Substrate Casing Mix
Typical harvest 2–4 flushes
You provide Spores or liquid culture
Experience level Beginner to intermediate

Choose your size

Kit Monotub Water bath Spawn Substrate
Medium 44Q (this kit) 18" × 15.75" × 12" 2.5–2.75 gal 1 spawn bag 7.5 lbs
Large 66Q 22.5" × 15.75" × 12" 3.1–3.25 gal 2 spawn bags 10 lbs

Real results

A MycoClimate™ monotub in full fruit.


Build out your MycoClimate™ setup

44Q Kit 66Q Kit Upgrade Kit Refill Kit
Use it for Automated grow, everything included Same system, more yield Automating a tub you own Restocking after a run
Monotub 44Q included 66Q included Not included Not included
Spawn + substrate 1 bag + 7.5 lbs 2 bags + 10 lbs Not included 1 bag + 7.5 lbs
Pairs with Liquid culture Liquid culture Your 44Q tub This kit

Common questions

What do I need to add?

Only spores or liquid culture to inoculate the spawn bag. Everything else — tub, water-bath base, heater, air pump, timer, light, spawn and substrate — is in the box.

How does the water-bath heating work?

The monotub sits on a second tub base filled with water. The submersible heater warms that water, and the warmth rises evenly through the floor of the grow chamber, so the substrate stays warm without hot spots or drying out.

What should I set the heater to?

It depends on your room. Below 60°F, set it to 78–80°F; between 60 and 70°F, 76–78°F; between 70 and 74°F, 75–76°F. That number is the water temperature, not the air in the tub. Your real target is 74–76°F inside the chamber during colonization, so go by the thermometer and drop the heater a degree or two if it reads above 76°F.

Does the timer run the LED too?

No. The included 24-hour timer runs the air pump. Run the LED 12–16 hours a day once pins start; plugging it into a second outlet timer makes that hands-off too. Light is only a signal for mushrooms to fruit, so more hours is not better.

How often should the air pump run?

Each notch on the timer is 30 minutes. During incubation, run it 30 minutes every 8 hours. In early fruiting, 30 minutes every 2 hours. In heavy fruiting, leave it on. Heavy condensation inside the tub means it needs more air.

Do I need to mist the substrate?

No, and you shouldn’t. Small beads of moisture on the surface are the target. If it looks dry, lightly mist the inside walls and let humidity rise on its own. Spraying the substrate directly is the most common way bacteria get into a healthy tub.

How long does a full grow take?

After your spawn is colonized, bulk colonization takes 10–21 days. Pins form once the surface is fully white, and mushrooms are ready 4–7 days after that. Each later flush arrives 5–10 days after the last harvest, and most grows give 2–4 flushes.

How much water goes in the bottom tub, and how often do I change it?

About 2.5–2.75 gallons, which is roughly 4 inches deep. Top it up as it evaporates so the heater stays submerged, and replace it every 10–14 days. A quarter cup of hydrogen peroxide, or a teaspoon of Myco Labs Eco-Cleanse, keeps the water cleaner for longer.

Is it good for beginners?

Yes. The heater, air pump and timer handle the conditions that are hardest to manage in a basic monotub, and a printed guide plus video library come in the box.

Can I reuse the kit?

Yes. After your last flush, clean the tub and restock with a Medium 44Q refill kit. The heater, pump, light and timer are all reusable.

What is the difference between this and the upgrade kit?

This complete kit includes the 44Q monotub, spawn and substrate. The 44Q upgrade kit has only the automation, lighting and filtration parts (plus the water-bath base) for growers who already own a Medium 44Q Grower’s Select monotub.

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