150-Cell Rockwool Tray – Premium Rooting & Germination Plugs · 530x310mm High-Yield Cloning System

The 150-cell Rockwool Tray (530x310mm) is the ultimate high-efficiency propagation system designed to guarantee explosive root growth for your cuttings and seeds. By combining a sturdy plastic tray with 150 perfectly aerated 25x25x40mm rockwool cubes, this setup delivers the exact moisture-to-oxygen ratio your baby plants need to thrive from day one.

Are you tired of losing half your cuttings to rot or dealing with seeds that just won't pop in soggy, messy soil cups?

There is nothing more frustrating than spending hours taking perfect clones from your favorite mother plant, only to watch them wilt, turn yellow, and die because the rooting medium suffocated the stems. Wasting expensive seeds and losing weeks of vegetative time due to inconsistent moisture levels can completely derail your harvest schedule and kill your motivation.

With this 150-cell rockwool tray, you instantly eliminate the guesswork and chaos from your propagation phase. Each rockwool cube provides a sterile, perfectly structured environment that holds exactly the right amount of water while letting roots breathe, ensuring a near 100% success rate for your clones and seedlings in record time.

Preparing for Success: Before Using Your Rockwool Tray

Before you start snipping branches or dropping seeds, you need to prep the rockwool. Since rockwool naturally has a high pH, conditioning the cubes is a non-negotiable step to ensure your delicate new roots don't get burned. You'll want to set up a clean workspace and get your rooting hormones and scalpels ready for action.

• Soak the tray in water pH-adjusted to 5.5 for about 12 to 24 hours to stabilize the cubes.
• Never squeeze the rockwool cubes to drain excess water; gently shake them to keep the internal air pockets intact.
• Prepare a high-quality rooting gel or powder to seal your cuttings immediately after slicing.
• Ensure your mother plant is well-hydrated before taking cuttings to increase their survival chances.

The Magic Happens: During Cloning and Germination

Once your tray is loaded with 150 potential heavy yielders, the waiting game begins. During this critical phase, the rockwool acts as a sponge, feeding your babies while keeping the stems firmly in place. You will want to place the entire tray inside a high-quality propagator dome to maintain that sweet 80-90% humidity level that clones crave. If you are serious about your genetics, pairing this tray with dedicated Cloning equipment will make the process incredibly smooth and professional.

Keep a close eye on the temperature, aiming for a cozy 24°C (75°F). The beauty of the 150-cell layout is how easy it is to monitor everything at a glance. You won't need to water them constantly; just mist the inside of the propagator dome and let the rockwool do its job. Within 7 to 10 days, you'll start seeing those beautiful, fuzzy white roots poking through the bottom of the cubes.

After the Roots Pop: Results and Maintenance

The moment you see roots bursting out of the rockwool, it's time to celebrate. The transition from this tray to their next home is completely stress-free. Because the roots are safely entangled inside the cube, you just lift the plug and drop it directly into soil, coco, or your Hydroponic and Aeroponic Systems without exposing the delicate root hairs to light or air.

As for maintenance, the plastic tray itself is highly durable and reusable. Once you've transplanted your 150 babies, simply wash the tray with a mild bleach or hydrogen peroxide solution to sterilize it for your next batch. The rockwool cubes are single-use, but replacing them is cheap and easy, keeping your operation running smoothly.

Short- and Long-Term Advantages and Benefits

• Perfect moisture retention: keeps the stems hydrated without drowning them, which means you get faster, healthier root development with zero rot.
• 150 individual 25x25x40mm cells: allow you to propagate a massive number of plants in a compact 530x310mm footprint, meaning you save valuable grow room space and maximize your yield potential.
• Sterile, inert material: prevents the introduction of soil-borne pests or pathogens, which means you enjoy total peace of mind knowing your fragile clones are safe from disease.
• Structural integrity of the cubes: protects the root zone during transplanting, meaning your plants experience zero transplant shock and continue growing vigorously.
• Reusable heavy-duty plastic tray: withstands multiple grow cycles, which means you save money in the long run by only needing to buy refill cubes.

Frequently Asked Questions

Do I need to adjust the pH of the rockwool before using it?

Yes, absolutely. Rockwool naturally has a high pH (around 8.0). You must soak the cubes in water adjusted to a pH of 5.5 for at least 12 to 24 hours to create the perfect slightly acidic environment for new roots to thrive.

Can I use this tray for seeds as well as cuttings?

Definitely! The 150-cell tray is fantastic for seed germination. The pre-made holes in the cubes are the perfect size for dropping in a seed, providing the ideal dark, moist environment for it to sprout quickly and safely.

How do I know when it's time to transplant?

You'll know they are ready when you see several strong, white roots protruding from the bottom and sides of the rockwool cube. This usually takes between 7 to 14 days depending on the strain and your environmental conditions.

Can I put these rockwool cubes directly into soil?

Yes. One of the best things about rockwool is its versatility. You can plant the rooted cube directly into soil, coco coir, or place it into a net pot for a hydroponic setup without removing the rockwool.

Personal Experience of Pevgrow’s CEO (Alan)

Whenever we are hunting for new phenotypes or backing up our favorite mother plants, this 150-cell rockwool tray is my absolute go-to. Before I even take a scalpel to a plant, I prep the tray by soaking it overnight in a mild nutrient solution with a pH of 5.5 and a dash of root stimulator. The trick I always use is to gently flick the cubes to remove excess water—never squeeze them, or you'll ruin the micro-pores that hold the oxygen! During the rooting phase, I keep the tray under low-intensity Grow lights and strictly monitor the dome's humidity. I rarely have to water the cubes themselves; just misting the dome keeps the microclimate perfect. After about 8 days, the tray looks like a sea of spiky white roots. The transplant process is ridiculously fast, and because the roots are undisturbed, the plants don't even realize they've been moved. It’s a foolproof system that saves me time, space, and a lot of headaches.