Products Description
Stone Rockwool Grow Cubes RC100: Versatile Hydroponic Substrate
RC100 grow cubes work as both intermediary and final planting containers, delivering high-quality stone wool substrate ideal for hydroponic and indoor cultivation. A top-selling choice in our growing block series.
| Model | Size(mm) | Size(inch) | Pre-hole size(mm) | Quantity per carton(pieces) |
| RC100S | 100x100x65 | 4"x4"x2.5" | 25x35,round | 216 |
| RC100M | 100x100x75 | 4"x4"x3" | 25x35,round | 180 |
| RC100L | 100x100x100 | 4"x4"x4" | 25x35,round | 144 |
Parameter
Features: Light-blocking wrapping film
pH<7.5
Sink time<10s
Water absorption rate≧900%
Organic matter content <1.5%
Toxic & Harmful Heavy Metals Content: Not detectable
Application
Rockwool plug TP25/TP36/TP40/TP50 can fit snugly into the pre-formed hole on the top of the growing cube.
Used as an intermediary container for cannabis planting.
Product Advantage
1.Ideal water-air balance;
2.Root-safe transplant finishing;
3.Grooves aid drainage & enable root air pruning;
4.Uniform water content & conductivity across cubes;
5.Rapid root system development;
6.Compatible with most grow slabs.
Usage Tips:
1. You need pre-soak them before use.
2. Adjust nutrient PH of 5.5-6.5 for cannabis cloning.
3. Rockwool plugs can be reused or recycled for another planting. Plant leafy vegetables（ shallow-rooted plants）after disinfection. Or cut it and mix it with the soil to improve the air permeability of the soil.
4.It is suggested to wear a pair of gloves when using.
