Monkey Fan Mf2x120 (2 Units) – Compact Air Circulation for Grow Tents

The Monkey Fan Mf2x120 (2 Units) is your best ally for keeping the air in your indoor crop moving without sacrificing a single centimeter of growing space. This pack includes two high-efficiency 120mm fans designed specifically to clip onto the structure of your tent, ensuring that your plants receive the constant breeze they need to grow strong, healthy, and free of fungal diseases.

Is your grow tent suffering from stagnant air?

Problem: You've got your lights and extraction set up, but you're not sure how to position the internal fans. Floor fans take up space meant for pots, and big clip fans often slide down the poles or vibrate too much. This uncertainty creates "dead zones" where air doesn't move, leading to dangerous microclimates.

Agitation: If you ignore this, the consequences can be disastrous. Stagnant air is the breeding ground for mold (botrytis) and powdery mildew, which can ruin your harvest in days. Plus, without a direct breeze, your plants' stems won't toughen up, leading to weak branches that can't support heavy buds. It feels like the equipment isn't working, but it's just a lack of proper air distribution.

Solution: The Monkey Fan Mf2x120 pack solves this instantly. By having two units, you can create a complete air circuit (one high, one low) that eliminates dead zones. Their specific design for tent poles makes installation intuitive and secure, turning the chaos of cables and bulky fans into a clean, professional, and efficient system.

Phase 1: Preparing the ground

Before you start clipping fans everywhere, take a moment to analyze your setup. Good circulation isn't about blasting wind at the plants; it's about creating a gentle, constant vortex.

• Check your pole size: These fans are designed for standard tent poles (usually 16mm to 21mm). Make sure your structure is compatible.
• Identify hot spots: Look for areas where heat from the lights accumulates, usually at the top of the canopy.
• Plan the airflow: Visualize a circle. You want air to move around the plants, not just hit them directly.
• Power check: Ensure you have enough sockets on your power strip for two plugs.

Phase 2: Setting up the product

Installation is where the Monkey Fan shines. Forget about duct tape or precarious clamps; this is plug-and-play engineering for growers.

1. Unpack the duo: Take both units out of the box. You'll see the specific coupling mechanism for poles.
2. Select the height: Place one fan below the canopy level to move air through the stems and pots. Place the second one above the canopy, between the light and the plants.
3. Clip it on: Snap the clip onto the vertical pole of your Grow tents. It should feel firm and not slide.
4. Adjust the angle: Tilt the fans slightly so they aren't blowing directly onto a single leaf (which causes wind burn) but rather creating a current across the room.
5. Cable management: Run the cables down the pole and secure them with zip ties to keep the tent tidy.

Phase 3: Use / growing step by step

Now that they are mounted, let's get the air moving correctly throughout the cycle.

1. Start-up: Plug them in. You should immediately feel a breeze circulating without excessive noise.
2. Vegetative stage: Keep the fans running to stimulate stem thickness. The movement signals the plant to build more cellulose.
3. Flowering stage: This is critical. Ensure the top fan is dissipating heat from the lamp and the bottom one is preventing humidity buildup in the dense foliage.
4. Daily check: When you open the tent, check that the fans haven't shifted angle and that the breeze is reaching the corners.
5. Night cycle: It is highly recommended to keep internal circulation on 24/7, even when lights are off, to prevent condensation and mold.

Phase 4: Closing, maintenance and learnings

Once you harvest, don't just turn them off and forget them. These fans work hard in a humid environment, so a little love goes a long way.

Wipe down the blades with a damp cloth to remove dust and resin buildup. Dust on the blades unbalances the fan and makes the motor work harder (and louder). Check the cables for any wear and store them in a dry place if you are taking a break between crops. You'll notice that using two small fans is much more effective than one large, clumsy one.

Advantages of following this flow instead of improvising

• Total coverage: Using two units allows you to manage temperature at the top and humidity at the bottom simultaneously.
• Space efficiency: You regain floor space for more plants or easier watering.
• Pest prevention: Flying insects and mold hate strong air currents.
• Stress reduction: Prevents heat stress by constantly mixing the air layers.
• Professional setup: Your grow room looks cleaner and more organized, reducing the risk of accidents.

Frequently Asked Questions

Can I use these fans with any grow tent?

They are compatible with most standard grow tents on the market that use tubular structures (poles) between 16mm and 21mm. Check your tent specs to be sure.

Should I leave them on 24 hours a day?

Yes, absolutely. While your extraction might slow down at night, internal Air fans should keep running to prevent moisture from settling on the leaves, which causes mold.

Are they loud?

The Monkey Fan Mf2x120 is designed to be quiet. Since they are smaller (120mm) and optimized for this use, they generate much less noise than a standard domestic fan.

Do they oscillate?

This specific model (Mf2x120) is typically a static circulation fan designed to create a constant airflow. You adjust the angle manually to direct the stream where needed.

Personal Experience of Pevgrow’s CEO (Alan)

"I used to struggle with big oscillating fans hitting my lights or crushing my plants in small tents. Switching to the Monkey Fan 120mm system changed the game for me. I always use the pair: I mount one low, aiming slightly up through the branches to keep the pots dry, and the other one high, blowing just under the Indoor Extraction Kit filter.

The biggest mistake I made at first was pointing them directly at the plants like a hurricane. I learned that aiming them at the tent walls creates a gentle 'whirlpool' effect that moves all the leaves without stressing them. It's the most efficient way to use space I've found so far."