Just PH water at 6.3 on #3,#4
nutrients was fed to #1,#2
They are just coming along healthy and strong,#3,#4 had a Nitrogen Deficiency caught it in time has not progress further other then those two. 7 weeks they are,
#3,#4 had a Nitrogen deficiency about 2 weeks ago caught it in time. Found out soil (FFOF) still had plenty of nutrients. So its PH of 6.3 water until they are ready