Can someone help identify the problem.

[lnulbran]

So I'm using ocean forest potting soil and my grow was going good. I started to add Big Bloom liquid fertilizer into the watering a couple weeks ago and seemed to have a nute burn so I stopped adding the fertilizer but I'm still getting purple/yellow leaves.
I also have tested my water and it's about a 6.3ph level, should I lower it more with the kit I purchased?

 

[WonkasTHC]

Dont ph your water anymore, ocean forest has ph buffers in it to do it for you.
Fox farms big bloom doesnt feed the plant much if anything at all, its a 0-0.5-0.7 npk ratio.
You need to be feeding the big bloom WITH fox farms grow big right now which is a 6-4-4 npk ratio.
Those plants are STARVING

 

[chitownglass]

Hungry

 

[storz]

there are a number of factors to address before a diagnosis.
What size pots?
Are you ph ing after you add nutes?
How about lighting--is it too close of too intense causing light toxicity?
Is your Ph testing by meter or dip sticks?
If meter, when was it last calibrated?
Sorry about all the questions

 

[lnulbran]

there are a number of factors to address before a diagnosis.
What size pots?
Are you ph ing after you add nutes?
How about lighting--is it too close of too intense causing light toxicity?
Is your Ph testing by meter or dip sticks?
If meter, when was it last calibrated?
Sorry about all the questions

They are 5 gallon grow bags.
I did check ph before and after adding nutes. Before it was about 6.7 and with nutrients about 6.3ph. I use a vial of water and add a couple drops of the ph indicator that came with the kit then match the color to the chart.

 

[lnulbran]

For the the other two replies, I added nutrients back into the water and will feed then more.

 

[storz]

consider a PH pen vs the color matching type. When you are dealing with a rang say of 6-6.8 ph, the color matching IMHO is not accurate enough.