PH Water Run off VERY low

Urm8

Urm8

New Member
I'm a second time grower, I've been using AN Grow A+B during veg (Perfect PH range) and checking the PH with an indicator each time before it goes in usually at 6.5.. now this whole veg period i never once checked the run off, as i presumed what as going in must be coming out, give or take a drop of 1 PH which i read somewhere on the webs. but after there was a lot of run off during watering, i decided to check and the PH was very LOW i talking in the 2-3 bright orange nearly.. but the plants aren't looking any different, all very green but i read that could also be a sign somethings not right.. i thought this was going to get easier, some advice would be great!
 
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SensiROME_420

SensiROME_420

Active Member
Have you measured the ppm of the run off and compared to the ppm of you feed solution? Ever done any flushing? Situation may not be too bad if your not getting any leaf discoloration. An extremely low soil ph would usually cause a nute lock out causing leaves to yellow and tips to brown. I too seldom ph'd and ppm checked my run off but i make it a habit to do it at least every two weeks.
 
Alexander Supertramp

Alexander Supertramp

Well-Known Member
Urm8 said:
I'm a second time grower, I've been using AN Grow A+B during veg (Perfect PH range) and checking the PH with an indicator each time before it goes in usually at 6.5.. now this whole veg period i never once checked the run off, as i presumed what as going in must be coming out, give or take a drop of 1 PH which i read somewhere on the webs. but after there was a lot of run off during watering, i decided to check and the PH was very LOW i talking in the 2-3 bright orange nearly.. but the plants aren't looking any different, all very green but i read that could also be a sign somethings not right.. i thought this was going to get easier, some advice would be great!
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Runoff pH means nothing about the mediums actual pH. If it is super low there is a good chance you are overfeeding. How do your plants look?
 
Urm8

Urm8

New Member
the plants look very green no bad spots, they were stunted tho earlier on cos i couldnt get them into bigger pots in time.. wasnt sure if they had nute lock, i gave them a bit of a flush got the ph back up to around 5, hopefully flushed out some of the un needed grow nutes, now they are flowering, i just gave them their first dose of bloom nutes. need to get something to test the ppm at the top of the list, ive put it off for too long ha.
 
Urm8

Urm8

New Member
SensiROME_420 said:
Have you measured the ppm of the run off and compared to the ppm of you feed solution? Ever done any flushing? Situation may not be too bad if your not getting any leaf discoloration. An extremely low soil ph would usually cause a nute lock out causing leaves to yellow and tips to brown. I too seldom ph'd and ppm checked my run off but i make it a habit to do it at least every two weeks.
Click to expand...
so a good sign for a nute lock out is for yellowing tips, this has happened to a few fan leaves before usually stops on one leaf.
 
SensiROME_420

SensiROME_420

Active Member
Urm8 said:
so a good sign for a nute lock out is for yellowing tips, this has happened to a few fan leaves before usually stops on one leaf.
Click to expand...
Yea Yellowing tips I found in my own experience usually pointed to low ph couple with excess nute buildup. For me this happened at the bottom leave and worked its way up
 
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