Goldfish New-Tank Syndrome

A New Goldfish Aquarium

The term new-tank syndrome refers any goldfish tank that has not fully cycled its nitrogen cycle. Ammonia levels become dangerously highly in a goldfish tank with new-tank syndrome. New-tank syndrome occurs in a newly setup goldfish tank or a tank that has been completely cleaned top to bottom and then goldfish are introduced. These tanks lack beneficial bacteria that convert toxic ammonia into nitrites and less harmful nitrates; ammonia that the goldfish produce .It takes 2-6 weeks for a tank to cycle and the ammonia level spike to drop to safe levels.

Cope with New Tank Syndrome

It is best goldfish care practice to set up a new goldfish tank and let it run for 2-6 weeks before any goldfish are added. To avoid new tank syndrome add a gravel substrate, fill the tank with clean dechlorinated water and run the filters during those 2-6 weeks. Beneficial bacteria will begin to grow in the filter media and in the gravel substrate. Beneficial bacteria will grow naturally but can also be purchased to speed up the process.

An established goldfish tank should never be completely clean or a 100% water change performed since it would eliminated the beneficial bacteria that is critical for a properly functioning nitrogen cycle. Routine maintenance and regular water changes are the best way to achieve optimal water conditions but any filters and gravel substrate should never be washed with water that isn’t from the goldfish tank. (clean gravel substrate). Water changes should be no more than 75% but no less than 20%. A water change is the easiest and safest way lower elevated ammonia levels by removing the ammonia from the tank water. Use an ammonia test kit to track ammonia levels in a goldfish tank before introducing the goldfish to avoid becoming a victim of new-tank syndrome.