I recently rescued 2 Bettas from my local pet store. They are now in 1 gallon bowls with a leafy plant and on my living room table which gets plenty of sun during the day. They are not happy. They sit on the bottom most of the time, haven't made any bubbles, and I've only gotten 1 to eat in the 5 days I've had them. Any advice on what to do is greatly appreciated. Thank you.