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
 

projectinfo

Well-Known Member
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.
 

jewsh808

Member
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..
 

KryptoBud

Well-Known Member
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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