GrowingtoLive, I watched your video. That's definitely a sad looking lemon tree. I hope to avoid over watering mine (I've already over watered my strawberry plant and some of my new seedlings that need transplanted to bigger containers).
The pot is not big enough for this tree because it tapers on the sides. The tree may fit it if I disturb the root ball and kind of force it in, which I don't think is a good idea. The pots must be the same size, just shaped differently.
The lower and middle leaves are still curled under. I watered it Wednesday when I got it. It's now Sunday and the soil definitely feels dry, but I wanted to wait to water it until I transplanted it into its new pot. I'm hoping the curling is just caused by it wanting a drink and that adding additional soil designed for citrus will feed it enough to prevent more leaves from yellowing. How long after transplant should I wait to feed it? The soil I have for it is Miracle-Gro enriched.