Thanks! I did think of the moisture part as I wet the soil some before replanting. I may have had it too wet. I'm going to let it dry out for a while before watering.

I did add rocks to the bottom to keep it well drained. I will try the sand idea as well.

I didn't know about the larger pot. I went a few sizes up to give it plenty of room to grow.

Again, thanks for the help.