sorry, I may have misposted the info. I read, in the manual on how to diagnois problems, that hydro and soiless mix the ph should be about 5.8. After I put the nutes in the water, the ph that I am pouring is about 6.8, and the runoff goes up to about 7.1.

Some people are saying that Promix is a soiless mix, thus you treat it so that the ph is 5.8 with the nutes, others say that it is a soil and the ph should be around 6.5.

What is Promix?? Soiless mix or Soil??