Hey! At day 10 since sprout, tip edges curling up could be early signs of light stress or possibly a bit of heat stress, even though your temps (25–27°C) and humidity (70%) look fine. Good move adjusting the light—18” should be safer, depending on your light type. Also, make sure the medium isn’t staying too wet; overwatering at this stage is super common and can cause similar leaf curl. Keep an eye on how she responds over the next 24–48 hours. You’re not far off—she just needs a stable, gentle environment to get rooted strong.