Sudden Yellow Leaf?
I noticed today that a single leaf on my Philodendron Brasil has turned completely yellow. It has to have happened extremely suddenly, like within the last day. All other leaves look the same, except for the leaf below which is half yellowed.
I doubt it's a sunlight issue since other leaves which receive less sunlight are unaffected. It may be a watering issue since I missed a watering by about 5 days (it was watered after about 12 days rather than the usual 7), but then I'm not sure why it would be isolated to this one leaf, and the plant wasn't particularly droopy before. Does anyone have insight on if I should be concerned or am I overreacting at the first sign of danger?
I doubt it's a sunlight issue since other leaves which receive less sunlight are unaffected. It may be a watering issue since I missed a watering by about 5 days (it was watered after about 12 days rather than the usual 7), but then I'm not sure why it would be isolated to this one leaf, and the plant wasn't particularly droopy before. Does anyone have insight on if I should be concerned or am I overreacting at the first sign of danger?

2ft to light, indirect

4β pot without drainage

Last watered 1 week ago