Root Rot

I have root rot defo on 1 plant, poss spreading to another (nft try system) Is there any way of curing it and stop it spreading to the remaing 2?

I meant nft tray system

hydrogaurd..if you can find it..on the internet..they have stoped making it..there is a GH replacement.for hydogaurd it is a tea...that will keep root rot from happening..you need to make sure your water temps are Ok..that can cause root rot is my understanding..although i am mostly a soil grower...i clone aeroponic and hydro..