Lucas
Hey Lucas,
Great to see you growing this from seed.
A few pointers to get you even more success:
- I doubt your acer is an acer. It is an elm or a birch, from what I can see here.
- The tree is inside. But it does not like being inside. It really needs to live outside. (!) Once frost is over, move it outside in a bright position, ideally with a good number of hours of sunshine. For now, you could put it in a cold place that does not freeze, until it is ready to go into the garden for good
- Watering.. Always when the soil is getting dry. Keep in mind: Outside in summer this will be very quickly, so match location, pot-size to your watering abilities
For now, just keep it healthy and growing for a year.