Best answer
10-14 days
People also ask
How long can a betta fish go without food?
Given that Bettas are hardy fish, you can leave them without food while going on vacation for a period not exceeding 5 days. These fish can stay without eating for about 14 days (two weeks) but you are not advised to let them stay that long without eating unless you risk losing them.
How often should I fast my betta fish?
To prevent or constipation or avoid overfeeding in the future, fast your Betta fish 1-2 days every week is recommended, which gives their digestive system enough time to break down the food consumed in the past few days. As you might know, adult Betta Fish in the wild usually fast for a day every so often.
How long can I leave my fish without food?
Therefore, the recommended time you can leave your fish without food is 4 or 5 days. Before leaving your fish without food, you need to make sure that they are in good health.
Do betta fish get constipated?
Fasting Your Betta Fish on the Weekends Bettas are never shy about food and should be eating voraciously, which is a good sign of their health. However, constipation- yes, your little guy will get constipated, happens when you feed them too much. While constipation is a common ailment in Betta Fish, it still not great for your little guy.