PH of rockwool 7.5

[Illusion]

I just cut my rockwool slabs in half, and decided it would probably be a good idea to squeeze the water out of the cuttings to see what the PH of the water inside was... to my surprise its 7.5

I had presoaked my rockwool for 24hours in water with a PH of 5.5



So does this mean I should water the plants at PH 5.0 to make it balance to around 6.5... Or Does the water i give them always have to be 5.8 PH?

Illusion Reviewed by Illusion on 10-25-2007. PH of rockwool 7.5 I just cut my rockwool slabs in half, and decided it would probably be a good idea to squeeze the water out of the cuttings to see what the PH of the water inside was... to my surprise its 7.5 I had presoaked my rockwool for 24hours in water with a PH of 5.5 So does this mean I should water the plants at PH 5.0 to make it balance to around 6.5... Or Does the water i give them always have to be 5.8 PH? Rating: 5