Identifying deficiency

Hey happy growers,

There's yellow scattered spots all over with browning spots. I repotted it in promix herbs and vegetables mix and a couple scoops cow manure with composted humus. Not sure if excess watering is the culprit here.
It's worth mentioning that the plant had been line green for a while.
Please help me identify it's nutrient deficiencies.
On a side note, if the run off ph is 5 do I pour in water outside the range to bring the ph up?

What was it in before you re-potted? How long since you put it in the new pot?

It was pale and light green. It grew really good for a week until I started seeing the spots that are turning brown in some places