Hey temperature is great, it's not that. it is because of that container over it, but it should be so. As a seedling, it may have a very humid environment, but then you have to be careful not to water the soil too often. Because under the dome, the soil dries much more slowly under the high humidity. Carry on as before, everything great 👍🌱😎 If you have any further questions we are there 👍