Why would your little goldfish keep dying after a week?

Water quality: Goldfish are sensitive to water quality, and poor water quality can quickly lead to their death. Ensure the tank is cycled and that the water parameters, such as pH, ammonia, nitrite, and nitrate levels, are within the appropriate range for goldfish.

Overfeeding: Overfeeding goldfish can lead to water quality issues, as the excess food will rot and decompose, releasing harmful toxins. Feed your goldfish only small amounts of food once or twice a day.

Temperature: Goldfish are cold-water fish and prefer water temperatures between 65-75°F. Ensure the water temperature in the tank is within this range.

Tank size: Goldfish need a spacious tank to thrive. A single goldfish requires at least a 20-gallon tank, while multiple goldfish will need a larger tank.

Tankmates: Goldfish can be aggressive towards other fish, especially smaller ones. It's best to keep them with other peaceful fish that have similar water requirements.

Disease: Goldfish can be susceptible to various diseases, such as ich, fin rot, and swim bladder disorder. Keep an eye on your goldfish for signs of illness and treat any diseases promptly.

If your goldfish keep dying after a week, it's essential to determine the cause by testing the water quality and observing the fish for any signs of illness or abnormal behavior. Make the necessary adjustments to improve water quality and provide a suitable environment for your goldfish to thrive.