brown roots : i'm sure Zandor knows

[Perp]

I clean with H2O2 and use a little bit of H202 in the rez water. But mainly its cold temps. If you keep the temps under 70 degrees F, you could get away with not changing the water for weeks with no algae. I found FloraNova just tends to really promote the algae, although I also found it works pretty well too. Ive got some massive plants from it.

For this reason I've always wondered why people think that watering in soil with cold water will "shock the plants." Roots need to stay cool.

[Weedhound]

I'm not familiar with using the GH series--use botanicare--but my hydro store owner told me to use 5ml per gallon (1tsp) per gallon H202--the 3% store bought kind. I know they make a stronger version but I have not tried it. It keeps out the mold, algae etc and gives the plants a good kick of O2. I add it every third day as it only lasts for 48 hours. I know there are some products you shouldn't use with H202--don't know what they are but this system has always worked great for me.

ps...nice photo of roots.

[Weedhound]

One last thing that may not be important....I adjust my ph last, after nutes. The nutes seem to change the ph of the water to too low...always have to adjust it up after adding things.

[BlueBear]

Actually you don't want to really use the h202 with botanicare for the most part because the H2o2 can kill off the benificial bacteria in organic products. If it works, hats off, but it is just something to consider.
Adieu