Hi,
I'm having a problem with my hydroponic water, I started new seedlings 3wks ago and all was well, I ph'ed the water to about 6.2 and added 1/4 tsp of Flora Micro and a 1/4 tsp of Flora Gro. After 3wks the plants were looking very healthy and large. I changed out the water at 3wks, ph'ed to...