Things You'll Need
- Goldfish water dechlorinator
- Bucket
Instructions
Choose a dechlorinating water conditioner that neutralizes chlorine, chloramine and heavy metals. Most of the brands you see in a pet store essentially do the same job but vary greatly in price. If you don't know which one is best for your particular needs, a sales assistant should be able to advise you. Water conditioners formulated for one goldfish in a small tank are the cheapest option, and they do the job just as well as some of the more expensive solutions.
Mix the water and dechlorinator together in a bucket, following the manufacturer's instructions for the correct dosage. Do not pour the dechlorinator directly into the goldfish tank.
Let the water settle if the instructions tell you to do this. Most dechlorinators work immediately, but some require you to let the solution work for up to an hour.
Pour the neutralized water into the goldfish tank and add your fish.