Yellowing plants: new grower please help

Emoney83

Active Member
New grower here. I had a problem with plants leaves being light green / yellow . Ph was on high side I got it to 6.0 now . New growth is nice and green but the older leaves seem to be getting yellower and I seen a couple spots they were a little it was a little dark. Could it possibly be over nutrients? I'm using general hydroponics 3 ports system. I haven't changed the solution in almost a week another thing is my net pot doesn't stay wet I have the nutrients about an inch below the bottom of the pot I have two air stones I'll post pictures of that also. Help is greatly appreciated please keep in mind I am fairly new and I might have made some stupid mistakes but you learn from mistakes right
 

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what ppm?

6.0 seems a bit high still.
Not knowing the conditions its currently in. my course of action would be as follows.


Dump the res, flush the net pots with RO.
Remix res to 200ppm, and 5.2-5.6PH
lift the lights slightly
 
PPM 264
E.C .5

I was always told to keep ph at 6.0 is that for soil or hydroponic. My plants aren't thriving like they need to those two plants sprouted on 10/22 so they're three weeks they are 3 weeks old or so I'll post some pictures of the whole setup so you can see what's going on
 

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phing to 5.2 and letting it drift up to 6.1 would be the optimal way of going about it for hydro.

whats your res temp? your ppm is likely fine where it is.
 
thats fine. i aim for 65-68 . you can probably get that by grabbing some of that foil/bubble wrap insulation from a hardware store. but not required if not going above 70.

i would at least get the ph down, and you can probably get rid of the drip... iv never used one and never have had issue. just another thing to go wrong imo. but many swear by them. so up to you :)
 
thats fine. i aim for 65-68 . you can probably get that by grabbing some of that foil/bubble wrap insulation from a hardware store. but not required if not going above 70.

i would at least get the ph down, and you can probably get rid of the drip... iv never used one and never have had issue. just another thing to go wrong imo. but many swear by them. so up to you :)


That's my Airlines for my bubble stones I'm just doing strictly DWC I'll definitely adjust the pH I'm dumping the reservoirs now. Thanks for the help
 
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