Your professional opinion wanted

So I have this problem, It affects about 60% of the plants older growth. My PH is 5.4ish and my PPM's are at 700 in a ebb and flow hydro setup.


Anyone have any guesses?

You can also check my setup in the grow journals

You using tap water? My brothers plants looked like that before I switched them to purified water, took them a few weeks to recover from it though.

No im using store bought distilled. Im hoping to get a RO unit but those things are pricey, i think.

Not sure then, maybe some kind of minor nute burn?

would of been nice to know how big your plant, how many day's your nute routine....

hmmm.... id say either its to hot, or your nutes or just to strong..... maybe changing nutes will do them good..... or stop giving them nutes for 4 day's you'll see they'll recover..

* Flush all stuff out with water, this means pour untill it leaks out of the bottom holes.....

yellow/brown tips is over fertilization, try to bring your PH up a bit, 5.5 is lowest, 5.8 is perfect, 6.0 is max for hydro systems. If you have too high or too low PH, it will lockout certain nutrients. Good Luck!!

thanks for that tidbit, ill readjust my PH

When is the last time u flushed the plants? It might be nut build up flush it for an houer or two in 1/4 strength nut solution. Might help you are running a low ppm so just try a flush.

Dr.Green said:

thanks for that tidbit, ill readjust my PH

Click to expand...

Also....not sure what meters you have but some(mine included) don't read distilled water ph accurately. They just bounce all over the place. But your pics look like a definate nute burn...very minimal though. I'd flush them and drop the ppm to 600.

DWR said:

would of been nice to know how big your plant, how many day's your nute routine....

Click to expand...

Well the plants are approximately 7 weeks old now. Ive LST'd them In their ebb and flow system for about 4 weeks now. My watering schedule is three times a day 15 mins at a time from my res'

thats a 4 inch fan in the background if it helps

Ive been flushing now for about 5 minutes, and ill guess well see if that helps

Thanks a lot yall'

They will be fine man don't trip, looking good to me. A little burn is not going to slow growth. Keep up the good work.