Ok....that was my next guess......
Weedhound Reviewed by Weedhound on . nft ph fluctuations. what could be causing this hi everyone i have 25 plants in a diy nft channel (it is just a pice of plastic house guttering) the seeds were started in jiffy pellets and then inserted about half way into a nft plug so that the pellet is above the flowing water and just the roots are hanging in the water flow.. over the last few days the plants as a whole have started to look a bit poor.. and a few of them now look like they are going to die. after spending the last couple of days researching my symptoms i am pretty sure i Rating: 5