Beginner: Introducing a New Goldfish to a Tank

Add a New Goldfish into a Tank

The best way to transfer a new goldfish into it’s new home is to leave the goldfish in the bag the pet store people put it in and place it directly into the goldfish bowl or tank until the water temperatures are equal. Don’t forget about it in the bag, it only has so much oxygen and If you leave it in there too long, they will suffocate and die. When the water temperatures are equal, dump the fish and the water in the bag into the new tank. mixing the water is a good idea. Depending on where you bought your goldfish from, you might want to consider a quarantine tank.

Only add a new goldfish to your existing aquarium or pond if it has the required space your goldfish needs. If you overstock them, it will lead to poorer water quality and require you to perform maintenance more often. Get more information about this by reading the next beginners post, How to Clean a Goldfish Bowl.

Transfer a Goldfish from a Tank into a Pond

If you want to transfer an indoor goldfish outdoors, do it slowly over the course of a week. Slowly bring the water temp down to the outdoor goldfish pond. Mix some of the pond water into the tank with the goldfish. The key is to not shock them. Yes goldfish can live in both warm or cold waters but the fast temperature change will likely kill them. Slowly mixing in the pond water will also help with the transfer. Read more on this topic in goldfish water temperature extremes.

More Goldfish Care Info.