Hey I have noticed that 2 of my plants have started to get this brownish red algae on there roots. Im in a DWC system and i have been changing nutes and flushing them about once a week. The plants leafs look fine at the moment but i am wondering if this new growth my effect them in some way soon. Thanks!
They are fine, they eventually get stained by your nutes. You can add a 1/2 cup of hydrogen peroxide per 5 gallons of res. solution, it will help with oxygenation and root mold.
is the light getting thru to the water? i there proper aireation?, i might try to use some hrdrogen peroxide, just a thaught