Brown roots, is this from light getting through the lava rock?

trichomes

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brown_roots1.jpg
thank you soryy this is posted in 2 areas, I think, still learning, I've been using peroxide to clean, but it comes back the next day, water changed weekly, ph 6.0, res. painted black, did not help problem, I will add smaller lava rock, I think the brown algae is from light. PLEASE HELP!!
 
JJ thanks again, I'm using FOXFARM Grow Big Hydro Food concentrate "3 - 2 - 6" it's green , 2-3 tsp. per gallon (hard water) plants are in perfect health, no suffering! res temp is in the 60's, your help is GREATLY appreciated!!!!!!
What nutes? Sometimes nutes dye the roots. And how do your plants look above surface? Are they suffering?

Also what if the water temp of the res?
 
u rock! what enzymes could u suggest? I'll research that tip u gave me next. Do my roots look good compared to the root sizes??
If you're plants look good then I wouldn't worry, probably dye from the fox farm.

If you're considered feed with an enzyme to help kill dead or naughty roots.
 
YOUR GALLERY IS very IMPRESSIVE, ARE U PLEASED W/ THAT WHITE MICROSCOPE? My trich pics are all from a 14 m camera, I'm considerring a similar m-scope to yours, have u posted any trichome close ups? I didn't see any, but I did not see every photo of yours/ yet. best wishes from Ventura
 
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