What happens if I don't Feed my Fish for a Day?

Aquarium fish are fine without feeding for a day, it totally depends upon the fish species because different fish species have different tolerance than others.

A healthy fish can live without food for long, some fish species can even live for more than 2 weeks without eating. For example- gourami fish will last longer without food than a small guppy fish. Fish have higher fasting tolerance than we think, so they can live without food for a long.

Bigger and Older fish are harder, as they have enough body mass and fat reserves to use in case of extended periods of hunger.

Can fish benefit from Fasting?

It is good for your fish to fast for a day once a week. Fasting encourages the fish to burn excess fat reserves and helps to clear their digestion.

How long can fish go without eating any food?

Most tropical fish have the ability to fast and survive. It depends on the health of the fish, as healthy adult fish can go for a week or two without feeding. However, young fish don't have the fat stores of adult fish and they cannot go without eating very long. Adult fish can often go one week without any food, depending on their size, metabolism, and water temperature.

Following are some fish that can live for more than 2 weeks without eating:-

How many Days can You Skip Feeding Fish?

Adult fish can often go for 1 week without any food depending on their size, metabolism, and water temperature. Bigger and Older fish have enough body mass and fat reserves to use in case of extended periods of hunger, so they can easily skip feeding.

Newborn fish require constant feedings, it may be best to set up an automatic fish food feeder or any pet sitter who can take care of their needs. It is not safe to skip feeding newborn fish.