How long should you wait to feed fish in a new tank?

I would recommend getting a timer and setting it for about 10 hours on. As for feeding them, I would say you can feed them any time. In about 2 weeks ( don’t test, add any additives or do a water change during the 2 week period as your results will be skewed ) you can do your water testing, big water change, etc.Click to see full answer. Then, when can you feed fish to a new tank? After you’ve added the fish It is best to avoid feeding for at least 24 hours as they’re likely to be too stressed to eat, resulting in extra waste. However, if you’ve had a group of other fish in the fish tank that you’ve had for a while you might want to put a bit of food in for them to eat.Also Know, how often should I feed my new fish? Most fish require 16 to 24 hours to fully digest the food they eat, so a once-a-day feeding is quite sufficient. However, some owners prefer to feed their fish very lightly twice a day. Whether you feed one or two times per day, the key is to keep the feedings very small. Keeping this in consideration, can I add fish after 24 hours? You can add a small amount of fish flake food, small chunks of raw shrimp, or used filter media and gravel from another aquarium that is established. Even with these tricks to speed it up, you should give your tank at least 24 hours to start building up bacteria before adding fish.How long does it take for a new fish to eat?In my experiences, all my fish have started eating within 4 or 5 days depending on the species. Some will eat right away. New fish take a little time to get used to the tank. Like the new kid at school, they act very vulnerable usually until they get used to things.