soaking Rockwool Cubes!

jewsh808

Member
What's the deal with the Rockwool cubes soaking in 5.5 pH water...I did a batch of 2" cubes in KLN + Protekt (5 ml each per gal)..left my pH very high ~ 9.5...no pre soak or anything...had great roots in about a week
 
Grodan is set to release the updated package soon if they haven't already. It's been changed. You don't need to do the ph pre soak any more.
 
I keep hearing about this..this was on a pack that DID specify Pre-soak though .. That's cool..ive used Oasis over rockwool because of the pre soak just taking up all that extra time..
 
If you use rockwool in a flood and drain or dwc type hydro system it can change the ph of your rez if they're not soaked first.
 
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