I'm using gh fn grow which is like a super muddy thick nutrient base that is like black and turns my water like the color of coke! I am thinking that is why my roots are brownish I'm guessing ? Anybody using flora nova have this issue?
Absolutly, this is common with some nutrients and suppliments, my reservoir has same tint. The use of SilicaBlast and Hydroguard @ 2ml. per gallon will prevent a host of problems, I absolutely swear by it and consider it my primary suppliments. http://forum.grasscity.com/hydroponic-grow-journal...
Using GH has been a rewarding experience in that simply, they work, well. I use the Micro and Bloom Lucas formula and with two micro pore air-stones I can grow trees of weed. Those do not stain the root systems as does the Floralicious Plus. 8ml for 3.5g of solution. Stained roots are good if they are healthy.