this one has been vegging for 5weeks, in a bubble bucket, i have 2 in this bucket n 1 in a sep bucket in the same room, 3 days ago the 2 in the one bucket starting turning bad... heres some pics, please help... im pretty sure its not ph... an i have just started a fresh water flush, incase it was nute burn..
Looks like nothing I've had experience with--are you sure it's not pH related? Might want to check either way, that's the source of most problems.
raise the light 6inches, make certain you have good airflow, flush w/ leaching salt, keep ppm at 400 and a 1/2tsp of epsom salt per gallon of water to your nuts. when you replace them. when u leach and change nuts., keep the light off for a day. try and spray leaves w/ a good liquid cold pressed sea kelp-like maxicrop
Mine are beginning to look like this as well but not as bad. What kind of soil and nutes did you use?
i measure ph with the drip n test tube.... Please help the other one is turning now... Im running a bubbler system with a 250 watt hps