rockwool+?

[thechinaman]

hey, i just went to the nearest hydroponics store and picked up stuff for my next grow. For rockwool, you will need nutrients in the water? or can you just water it without nutrients and it will grow the same as in soil?

 

[Spliff Twister]

No. Rockwool has no nuts in it so you have to add them to the water,

 

[Racefan]

rockwool contains "ZERO" nutrients. To prep it for use soak it overnight in a 1/4 strength nutrient solution with a PH of about 5.