[nocreativity]

I am using a DWC hydro system--the plants r 2 weeks old and coming out of the basket--when they came out the roots where very nice---very clean white with tiny hairs. However, when the roots hits the water the roots turned a brown. Is this normal?? When i say hit--the roots just hit the water--they are not submerged or anything i mean the tips just hit the water. A little info:
The res temp is cool, the ppm is 550, the color of the water is a little brown, because of the nutrients, I am thinking maybe the aeration is not good---I am using a bubble wand that is not performing like i want. SHould i not worry about it--Thanks