Pothos Soft Leaves. Lower pothos leaves tend to tumble off, leaf margins curl, and legginess due to low light conditions. This is the first possible cause you need to exclude.

After you prune, your pothos will send out a new vine at the point where the leaf meets the vine, which is known as a node. Check the soil and drain any excess water. The best trick is to let the topsoil dry between watering, and you can check it by feeling the topsoil.

If This Occurs, Leave The Damaged Leaves On The Plant:
Pothos need sufficient indirect because as they grow, leaves expand and become larger. Water pothos when the soil dries ; Fertilizer is not something that most pothos require very often if at all.
Lack Of Light Will Cause Pothos Leaves To Elongate And Become Softer.
Mature leaves can get up to 3 feet (91 cm.) in length and develop into oval or heart shapes, often with holes at the midrib. The usual rule is to water your plant only once a week. Why are the leaves of my pothos curling?
Pothos Love As Much Light As They Can Get But Can Get Burnt If They Are In Direct Sunlight.
This will cause the leaves to droop downward. A longer duration of exposure to direct light means that they will get burnt. Can you revive wilting pothos leaves?