My snake plant is looking really sad and unhealthy. Any...
That pot looks a little big which can lead to overwatering. They like to be snug in a pot. Iβd downsize by 4-5β, check for root rot and remove damage, change out the soil, and make sure the new pot has drainage. Snake plants do well with neglect. Put them in indirect sunlight and water them infrequently and they do great.
With snake plants, the most common cause of drooping leaves is overwatering. The yellowing but not browning of the leaf also suggests overwatering. I would recommend checking the roots to see if they are still healthy. If the plant is overwatered and the soil is still damp, take the plant out, cut out any roots that could be rotted. Let the plant air dry without the soil for a few days up to a week. You can keep the soil by letting it dry out in the sun or use new soil mix.
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