green crack leaves look sick

[Fujihiro]

Hi there, I have very bad looking leaves on my green crack, could it be a low pH? Because I use Dr Earth organic fertilizer and I know they lower the pH and since I water at 6.5 it could be that?
Because I dont overwater, I only mix 15mL of all purpose Dr Earth, calcium and SaferGro Biomin Starter, 1-0-0 only once.

So either pH too low or overfeed because the calcium or the Biomin Starter?


My temp is a bit hight around 28°C and humidity around 45%. My light is 18" from the plant (Mars Hydro 150). The soil is FoxFarm Happy Frog.


Thanks

 

[Rwise]

Looks like a PH issue from here, and most likely from the feeding/s.

 

[Mlevy420]

Agree with Rwise. Had this issue as well. I cut out nutes for a week, just straight healthy pH'd water and cleared up on her own.

 

[Fujihiro]

Ok its what I thought, it should be better quickly I hope, I will post in few days after only whater at pH7 for raise it a little bit.

Thanks

 

[kayakiit]

Ok its what I thought, it should be better quickly I hope, I will post in few days after only whater at pH7 for raise it a little bit.

Thanks

Hopefully that helps, glad you'll keep us posted!

 

[PLreef]

Agree, ph is off. Check the ph at the roots/soil and go from there.

 

[Fujihiro]

Hi there,

A little update, the new leaves are a lot better, it was a pH too low, so now I pH at 7 because its probably the organic nuts who lower the pH... I will see if its a good balance, I also added dolomite lime in my mix but I guess I didnt put enough, I will continue to water at pH7 and it should be ok!

 

[Mlevy420]

In So Cal we are lucky that the tap water is consistently at pH 7. I initially started to use pH down, but would fluctuate like crazy. I gave up and all in all just use straight from the tap now. No issues for almost 8 weeks now. I check weekly now and still at 7 and girls are happy and healthy. Best of luck on those beautiful specimens!!

 

[Fujihiro]

Thanks!
I noticed a difference between the tap water and the filtered one, I use PUR filter and it raises my pH, I dont have explanation.
I also read that some cities add alkalinic solution to their tap water for prevent the rust of pipes but I dont know if its true...

 

[Mlevy420]

I never thought of that. Makes sense now that you say. Gonna have to research that. I used to use filtered water from the local stores Glacier machine. A total waste of time and money. Girls seem happier with tap water, maybe added minerals? If the range is acceptable for the medium, run with it 👍

 

[Dieselgrower]

My tap is very hot and I had to fight ph alot. Then I started going to one of those 25 cent a gallon spring water deals. They seem to love it and even after adding my nutes it around 6.0 which they seem to prefer and I only use the fluid no fancy tester.