My Betta is really sick. We recently added 2 fish to her tank, and everyone had ich within 1 day. I treated the tank with garlic, and things got worse. I lost one of the new fish, then bought some ich treatment, and started thatn2 days ago. My poor betta looks 10x worse, and I know she is suffering. It doesnt look like ich anymore, now it looks like she's rotting away. I do not have a heater to increase the temp. What do I do? Does she have a chance?