To identify that your neon pothos plant is healthy, be sure to check the leaves' color first. If the leaves are turning dark or solid greenish color, then the plant lacks sunlight. The plant is healthy when the color of the leaves is bright neon green. Avoid overwatering the plant to prevent the roots from rotting. Overwatering the plant can cause the neon pothos leaves to have brown leaf tips. The green leaves of the plant are a clear indication that the vine is healthy. When the plant starts to decay, that may signify that the plant was scorched, wilted, or deteriorating, resulting in the death of the plant.