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GROWING MEDIA: Grodan Cubes
Rockwool is probably the most widely used medium in Hydroponics.
Made from rock which has been melted and spun into fibrous cubes and
growing slabs with the texture of insulation, Rockwool provides roots with a
good balance of water/oxygen. Small cubes are used for starting seeds and
cuttings and then transplanted into larger cubes once rooted. Rockwool can be
used with NFT, dripper or flood and drain systems. Although it is possible to
sterilize and re-use Rockwool, most often it is used only once.
Rockwool will cause a higher pH level. You must adjust the pH level of the nutrient solution to
counteract this. A pH level of 5.5-6.5 should suffice to create a suitable
pH.
Small
Grodan Cubes are Ideal for starting cuttings and seeds, these allow new
roots access to ample water and oxygen. Once roots have emerged
from the small cubes they are usually placed in these larger cubes and
then onto any system. |
 Small Grodan Cubes
For starting cuttings and seeds Ideal for starting
cuttings and seeds, these allow new roots access to ample water and
oxygen. Recommended for later use in conjunction with larger cubes.
|
| Product
|
Qty |
Price
|
|
| Large
starter cubes |
24 |
£ 3.50 |
 |
| Large
starter cubes |
77 |
£ 7.00 |
|
| Box
of Large starter cubes |
1386 |
£
80.00 |
|
| Small
starter cubes |
50 |
£ 3.50 |
|
| Small
starter Cubes |
150 |
£ 7.00 |
|
| Box of Small Starter Cubes |
2700 |
£
80.00 |
|
 Large Grodan Cubes
For transplanting once roots have emerged from the
small cubes they are usually placed in these larger cubes and then onto
any system.
|
Large Hugo Cubes
This is the largest of all the rockwool cubes on the
market. It measures 50mm x 150mm x 150mm. Hugo blocks have 36mm holes so the
large propagation cubes or Jiffy pellets can be inserted directly into them
| Product
|
Qty |
Price
|
|
| 6 inch Cube large hole |
1 |
£ 1.60 |
|
| 6 inch Cube large hole |
48 |
£ 70.00 |
|
|
