Quote:
Originally Posted by OChydro
I growing in a GH Aero unit. The roots start of white but when I check them 2-3 weeks later after they are developed and in the water at the bottom they are brown. The plant seems healthy, is this normal for the roots?
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I don't know what plants you are growing, but to the best of my knowledge there are no plants that should normally have brown roots. I had a problem with the roots of my strawberry plants turning brown last summer also (see attached pictures). I E-mailed General Hydroponics (tech@genhydro.com) the pictures and they said it looked like the
nutrient solution was two warm. It should be between 68 and 72 degrees consistently. I don't know for sure that this is your problem, but it's the first thing I would look at.
My strawberry plants also looked healthy but were not growing as fast as they were. I started adding ice to the nutrient solution to cool it down and the roots started growing back white and healthy again in about a week (also in attached pictures). Another side affect is the flowers will start to turn yellow and fall off. This is a survival instinct by the plant because it takes more energy to produce the fruit.