im growing in potting soil, using tap water with bottled nutrients, I'm new to growing so I just recently ordered a pH meter because someone recommended it for me. Temp is around 79F and humidity is around 58%. I water when the soil feels dry. pic of entire plant is attached.
Which potting soil? There's a huge difference between say, Fox Farms and Miracle Grow, and even between the different types of Fox Farms.
Which bottled nutes and do you have a PPM meter to measure how much feed you are giving it? Are you watering to runoff? When using bottled nutes, you need to water until at least 10% of the volume you put in comes out the bottom. This helps push the salts from the nutes out of the medium so salt doesn't accumulate in the soil and burn up your plants.
Just so you know, watering to runoff is not over watering. Over watering comes from giving water too frequently, not by giving a lot of water at once. Drench the plant, and then wait until the pot is light when you lift it up and then drench it again.
I agree with Hipho about the old growth. I'd just remove any necrotic leaves.