seems to be the easiest to use. Many growers
claim that rockwool should be pre soaked for 24
hrs in water with a pH level of 5.6. This is to
stabilize the pH level of the rockwool.
How to make up nutrient solutions:
Always follow the very simple instructions
on the products. All you need is a container to
make up the nutrients in and the nutrients
themselves. Each of the packs should have A, B,
and C written on them. The mixture is usually
3.5mls of A and B and C per litre of water.
This is called a 100% strength mixture if you
follow the guidelines as stated exactly on the
label.
Hydroponics pH:
After you have mixed up your nutrient
solution you will want to take a pH reading of
it. If you have any problems, just like in soil
growing, you will need to adjust your pH level.
Now, you do not use the same method to adjust
pH levels as described in the soil chapter. For
hydroponics you need to buy a pH Up and pH Down
