Marcar 1 Monotub Grande de Cogumelo

The Microppose Large Monotub is purpose-built for serious mushroom cultivators seeking reliable, high-yield performance in bulk grow operations. With a 66-quart capacity, this monotub offers ample room for colonized substrate and is perfectly suited for growing large flushes of gourmet or medicinal mushrooms. Whether you're a commercial producer or a dedicated hobbyist, this tub delivers exceptional value and performance.

Crafted from custom-molded, super-dense polypropylene, the monotub is engineered for durability and repeated use. Its rigid construction resists warping, even under humid and warm conditions typical of mushroom cultivation environments. Measuring 22.5" L x 15.5" W x 12" H (outer dimensions), it offers substantial internal volume without being cumbersome, and it fits easily on standard shelving or growing racks.

The design includes six strategically placed air exchange holes, positioned to promote even FAE (fresh air exchange) throughout the substrate surface, which is essential for healthy fruit body development. Each hole includes a fitted plug, allowing you to seal the tub completely during colonization and then progressively open it to manage airflow during the fruiting phase.

Also included is a high-quality tub liner, which creates a physical barrier between your substrate and the tub walls, simplifying cleanup and reducing side pinning. The stackable design, enhanced with reinforced support ribs, allows you to stack up to 10 loaded tubs securely—an ideal feature for space optimization in grow rooms or storage setups.

Whether branded as Microppose or Grower’s Select, each unit is functionally identical and manufactured to the same high standards. Each listing includes the tub bottom, tub top, and the necessary clips to hold them together during all grow phases.

The Microppose Large Monotub is optimized for both novice growers and experienced cultivators seeking a low-maintenance setup. After colonizing your grain spawn (e.g., rye berries, millet, or brown rice), mix it thoroughly with a pasteurized bulk substrate and layer it evenly across the base of the monotub to a depth of about 3–4 inches. If using a casing layer (especially for species like Psilocybe cubensis or Pan. cyanescens), apply it evenly on top of the substrate.

Place the lid on and tape over or plug the ventilation holes during the initial colonization phase to retain CO₂ and humidity. Once full colonization occurs (usually 10–14 days), remove the tape or hole plugs to allow filtered fresh air exchange through the gasketed ports. Mist the sidewalls of the tub lightly with distilled water once or twice daily to maintain ambient humidity of 85–95%—avoid direct misting of the mycelium.

The monotub should be placed in a well-lit room with indirect natural light or a 6500K full-spectrum LED source for 12 hours daily. Maintain room temperature between 70–75°F (21–24°C). Within 5–10 days of initiating fruiting conditions, you should see pin formation, followed by maturing fruiting bodies ready for harvest within a week.

For species with higher fresh air exchange needs, you may briefly "fan" the tub by lifting the lid for 30–60 seconds once or twice a day, though this is typically not necessary due to the passive filter design.

Proper cleaning and maintenance are essential for preventing contamination and prolonging the usability of your Microppose Large Monotub. After each grow cycle:

1. Remove all spent substrate and dispose of it responsibly—do not compost indoors.
2. Rinse the tub thoroughly with warm water to remove debris.
3. Clean all surfaces, inside and out, using a soft cloth or sponge with mild unscented dish soap or a 3% hydrogen peroxide solution. Avoid harsh chemicals like bleach unless absolutely necessary, as they may degrade the plastic over time.
4. Rinse again and wipe dry with a clean, lint-free towel or allow to air dry.

Inspect filter gaskets or discs for discoloration, tearing, or microbial buildup. Replace any worn filters before starting your next cycle. If your tub comes with replaceable grommets or plugs, sanitize them separately and ensure a tight seal when reinserting.

Lids and tub walls can be sprayed with isopropyl alcohol (70%) before reuse for added contamination control. Store the monotub in a cool, dry location, away from direct sunlight to prevent warping or UV damage to the plastic. Keeping the monotub sealed during storage also prevents dust buildup or unintentional contamination.