Grodan Grotop Master Grow Board Rockwool 1000x150x75 mm

The Grodan Grotop Master Board is a professional
rockwool substrate for maximum control, strong root development,
and consistent plant performance – from veg to harvest.

Its special fiber orientation ensures perfect water distribution,
stable oxygen supply, and an extremely efficient root zone.
Ideal for precise indoor systems, LED setups, drip irrigation,
and high-quality genetics.

🌿 Woodpecker’s Key Facts

🧱 Rockwool Grow Board – 1000×150×75 mm
🌱 Optimal Air/Water Balance → strong Roots
💧 Fast & Even Water Absorption
🔥 Perfect for Drip & Automated Systems
🎯 Stable EC/pH Control
🪶 Lightweight, Clean & Mold Resistant
🌍 For Professional Indoor Growers & Hydro Setups

⚙️ Application

→ Adjust pH before use (usually 5.5–5.8 for 24h)
→ Ideal for:
• Hydroponics
• Drip Irrigation
• Drain-to-Waste
• Benching & Greenhouse Setups

→ Simply place starter cubes/plugs on top
→ Regular EC/moisture checks for top performance

Tip:
Rockwool thrives on precise irrigation – never "flood",
instead use short, measured cycles for maximum oxygen supply.

💥 What makes the Grotop Master Board so powerful

✔ Extremely strong root development
✔ Full control over water, EC & pH
✔ Higher yield stability with modern LEDs
✔ Perfect for large plants & long cycles
✔ Super clean, lightweight & reusable (if steam-cleaned)

📦 Perfect Combos

🔥 Grodan Plugs / AO Cubes → optimal start
🔥 Drip Systems & Irrigation Rings
🔥 Advanced Nutrients pH Perfect → stable EC/ppm progression
🔥 Enzymes → keep Rockwool clean & active

🦜 Woodpecker’s Conclusion

The Grotop Master Board is a rockwool board
for maximum control and consistent performance.
Strong roots, clean conditions and perfect water management –
a dream for precise indoor setups and pro growers.

If you want to rock high-end indoor:
Grotop Master delivers.

Woodpecker approved. 🧱🌱🔥🦜