Root Rot?? check out these pics...

These plants are three weeks old and they are in an aeroponic system. I am getting light brown spots on a few of the leaves and some of the roots look slightly brown up towards the rapid rooter sponge. Someone suggested possible root rot. Any feedback/advice would be greatly appreciated! Thanks!

They still look pretty white man? If in doubt,you could add some h202,the extra oxygen kills bacteria and pathogens plus boosts the roots,Ive been using it at a rate of 1ml per liter every 3 days with great results.peace RM.

You don't have root rot. What's your pH?