Yellow Pothos Leaf. This can take some time. So, when you overwater your plant, you are essentially suffocating it.
Leaf yellowing can also be caused by a lack of micronutrients. The final reason why pothos leaves will turn yellow in water is if they are not getting enough light. It will be much happier.

When Pothos Leaves Become Yellow, It Can Indicate Major Concerns Such As Pythium Root Rot And Bacterial Leaf Spot, Both Of Which Are Fungal Diseases.
Yellowing leaves on a pothos plant could indicate root rot. This will stop the leaves under the water turning yellow. What causes it if you water your golden pothos too much, you can simply reduce the moisture by repotting it with fresh potting soil in the same container.
When The Plant Has Pythium Root Rot, Mature Leaves.
You can even forget to water your pathos plant for months and it still will grow bigger. Pothos leaves turning yellow is a sign that the plant is experiencing some sort of stress, and it is possible that the problem isn’t overwatering or underwater, but inconsistent watering. When pothos leaves yellow, it can signal serious problems like the fungal diseases pythium root rot and bacterial leaf spot.
One Of The Most Prevalent Types Is Pythium Root Rot, And It’s Caused By Oomycetes Or Water Molds In The Pythium Genus That Thrive In Overly Moist Conditions.
Give your pothos the correct conditions and care while checking for signs. Neon pothos sport leaves that are a single, bright chartreuse color, with no variegation. A pothos plant placed in a dark room is the fastest way to kill it.