What deficiency? Or burn?

[Thedogfish]

What are we looking at here? Slightly dark growth on some upper leaves. With this deficiency or burn on this 1 leaf and it’s matching pair on the other side. It’s like a red or brown color creeping in from the edges of 2 leaves . Had 1 bad week of ph/over feeding/ watering problem but I think I’ve been recovering. This is my only 1/5 with this showing. I think I’ve done better since and it’s producing flower and growing alright despite the look of a few leaves. Any help?

 

[draxcel]

What are we looking at here? Slightly dark growth on some upper leaves. With this deficiency or burn on this 1 leaf and it’s matching pair on the other side. It’s like a red or brown color creeping in from the edges of 2 leaves . Had 1 bad week of ph/over feeding/ watering problem but I think I’ve been recovering. This is my only 1/5 with this showing. I think I’ve done better since and it’s producing flower and growing alright despite the look of a few leaves. Any help?

As a First thing to do,check below,if the issue Is starting from bottom leaves moving to upper older ones and let us know or post complete pics