Sorry, disregard my last post, I saw College and assumed soil and didn't even see this was in DWC. PH is fine where it's at. Have the roots made it out of the rockwool cube you started it in? If not, it looks really wet and could be an overwatering problem. It's really easy to overwater in those cubes(I've killed 2 sets of germinating seeds in those damn Grodan cubes.):thumbsup::thumbsup: