Snake Plant Brown Tips. The thinning foliage on your Snake plant as described would most likely be the result of less than desirable lighting or a light source that the plant is straining to reach. Tap water that is high in salts and minerals like chlorine or fluoride builds up in the soil damaging the leaves.
Most common reason for snake plant to get brown tips is excessive sunlight or hot climate. Looking at the soil watering seems to be the first suspect. Though the Snake Plant can withstand long periods of drought it still enjoys a regular watering routine.
That is a dead part of the leaf and will cause no further damage.
Why is my snake plant dying. Brown tips on snake plant due to water quality Even if your watering schedule is appropriate the quality of the water used could be causing brown leaf tips. Looking at the soil watering seems to be the first suspect. You may know that overwatering is one of the known issues when taking care of snake plants.