While this is a very rewarding plant that grows quickly and can grow big because it is a flowering plant it is a bit fussy and you will need to keep a closer eye on it than you would a lot of other plants. For light, you want a bright window that doesn't get too much direct sun. You don't want to water log this one so err on the side of under watering. Stick your finger down to the knuckle into the soil every week, when you feel it dry, give it a drink. It stores water in its leaves during the winter so you can let it go a little bit drier than you would other plants. Pet friendly.
Nematanthus gregarious aka Goldfish Plant comes in a 6" plastic growers pot, plant height is around 10" from the base of the pot.