yellowish roots

i am growing in a dwc one plant blueberry i was draining my res to put fresh water and nutes to start 12/12 when i seen that the roots are yellow at the top by the net pot but white at the bottom.anybody know why this is and what i can do about it thanks

Yellowish? sounds like nute stain, but why up at the basket?

This may be a silly question, is the roots getting plenty of bubbles up to the net?

Is there an odor of the roots? if not, and the roots aren't slimey, i think your fine.

It wouldn't hurt to treat the solution with 35% Hydrogen Peroxide (liquid oxygen), 1 tsp per gallon to kill off any bacteria.

it might be the water leval its not all the way at the net pot just under i will fix and see if that helps and hydrogen peroxide where can i get hp is it at any stores thanks

You can get it at many garden stores, or you can get it on ebay, heres a link to it, it makes your plants dance...

http://cgi.ebay.co.uk/LIQUID-OXYGEN-THE-PLANET-DANCE-12-90-AWESOME-listen_W0QQitemZ370065947770QQihZ024QQcategoryZ98913QQssPageNameZWDVWQQrdZ1QQcmdZViewItem

nah, i'm only messing with you, i'm sure if you type 'liquid oxygen' in your local ebay search engine, it will come up. Heres a link to an Ebay shop in the Uk where i can buy it...

http://cgi.ebay.co.uk/Growth-Tech-Liquid-Oxygen-H2O2-250ml-Hydroponics_W0QQitemZ150219852639QQihZ005QQcategoryZ43555QQrdZ1QQssPageNameZWD1VQQcmdZViewItemQQ_trksidZp1638Q2em118Q2el1247http://cgi.ebay.co.uk/LIQUID-OXYGEN-THE-PLANET-DANCE-12-90-AWESOME-listen_W0QQitemZ370065947770QQihZ024QQcategoryZ98913QQssPageNameZWDVWQQrdZ1QQcmdZViewItem