Even if you put food in the tank, they may not go after it quickly, nor will they eat as much. You are also likely to see slowed gill movement and very little fin activity. In bettas, it is likely the fish will move to the bottom of the tank.
Is 70 degrees too cold for a betta?
Their ideal temperature is between 78-80°F. However, they can survive in temperatures as warm as 85°F and as cold as 76°F. Below 74°F is when you’ll begin to notice the effects of temperature shock affecting your betta rapidly, and above 86°F he’ll begin slowly roasting to death in the water.
Is 74 degrees OK for a betta?
70 degrees fahrenheit is okay, 72 (room temperature) to 78 degrees is the ideal range. Below 68 and above 80 will stress Bettas.
Is 76 too cold for betta?
Since Betta fish are inherently tropical, the most suitable water temperature is between 76 and 82°F. Betta fishes are used to small spaces and can be kept in a 5-gallon tank, provided the ideal temperature ranging between 76 and 82°F is maintained.