My Betta Fish is Acting Weird

Question
Lynda,
I have had my betta for about four months and it is now turning into winter and it has become colder. When it started to get colder he stopped eating and started to stay in this one corner of his tank. Today I am going to get a heater and hopefully it will work. Do you have anything else to tell me on what I should do? Write back soon.
Sarah

Answer
Hi Sarah,
One thing that is very important, bring your water temperature up very very slowly.  One degree a day or even one degree every two days.  If you bring the water temperature up too fast, it could kill your betta, so do this very slowly.
I'm sending this off to you now, so that you will read this in time.
If you have any other questions, just ask, but for now this is the most important thing you should do.
Lynda