Quote Originally Posted by Rusty Trichome
You can't accurately ph tinted water when using one of those color-coded test kits. The tinting skews the results.

You might want to adjust your ingoing water to the high end of the ph range, (7.0 or so) and then add the nutrients. The nutrients will bring your ph down further, but ph should still be in the acceptable range. If you start to see the leaves curl ('the claw) or some yellowing...raise the water ph a tad more before adding the nutrients. The plants will let you know if that's ok. :thumbsup:

Was this what you were asking...?
Yeah, that sounds like plan. I've bought a syringe now as well, so now I can know exactly how much ML i put into the water. Handy!

Oh, and I just noticed I got a reply from biobizz on the matter.

"Biobizz are 100% organic products, there is no need for pH leveling. That is why working with Biobizz is intended to be easy. You do not need to worry about Ec and pH levels."

So it seems I should take it down to 6.5, and hope that works. If not, I'll just do what you said