Calathea Ornata Leaves are Withering
So I have a calathea ornata that I got maybe a month ago. The leaves are withering and drying up.
I am giving it bottled water as I read in some forums that tap water can be too harsh for these plants. I have it in the kitchen far away from any direct light, but the closest light source is a southern facing sliding door about 20 feet away. I'm watering it about once a week with bottled water and was given some liquid Miracle-Gro plant fertilizer to add to the water, but I'm afraid it's going to shock the plant. I just started to spray mist onto the leaves to help with humidity and have a pebble tray. Temps in my condo I'm guessing have been at high 50s at the worst of it. I don't have the heater running, but my place is still pretty dry.
In the picture you can see what the plant looks like. Any ideas on what I should do? Use plant fertilizer or spray with mist every day? Any advice? Thanks!