How Long Can Fish Go Without Food In An Aquarium. The glofish and shark should. A healthy grown-up aquarium fish can go from 3 days to 1 whole week without eating any food.
Therefore the recommended time you can leave your fish without food is 4 or 5 days. Most types of fish can go for at least that long without needing to feed. In ponds depending on the size and available algae and insects goldfish can go without feeding indefinitely.
The exact period a tropical fish can live without food depends on the species of fish.
No food in any tank for three days. If in nature or at an aquarium adult fish have enough body weight and fat. Everything else depends on the conditions. Beyond that youll definitely want to make some accommodation to have the fish fedeven if just every two or three days.
