Can I use tap water to fill my tank?

Yes, we can use tap water but always treat tap water with a water conditioner to neutralize chlorine and ammonia before adding it to the aquarium. 

Ordinary tap water is fine for filling up the aquarium as long as you let it sit for several days before adding fish. Always remove the chlorine from the tap water as chlorine in the tap water will kill the fish. You may also purchase a dechlorination solution for your tank. 

Some tap water may contain high levels of iron or magnesium and other tap water may contain trace amounts of ammonia or other harmful chemicals.

How do you make tap water safe for fish?

Boil and cool

It is essential to dechlorinate water before adding fish to your tank. Tap water will require some water, plants even after dechlorination.

All you have to do is boil the water for around 10-15 min. Chlorine will evaporate from it. This amount of time is best for around 10 gallons of water. If you boil more at one time, you might need to raise these numbers to 15-20 min.

UV exposure

Leave the water outside in the sun for 24 hours so the chlorine naturally evaporates in an off-gassing process. This is easy but takes time and leaves the water. It's a great option for people who require a lot of brine because they're fermenting multiple batches at once.

Vitamin C

It is often used to remove chlorine and chloramine from large amounts of water, like pools, hot tubs, and baths. But it can also be used in drinking water too.

The downside is you need to buy vitamin C tablets or powder and it can decrease the pH levels of water. You will need a higher amount of vitamin C to Remove chloramine. Approximately 40 mg will dechlorinate 1 gallon of water.

How long should Chlorine take to remove from tap water?

We can use tap water but always treat tap water with water conservation or dechlorinate it first. Tap water requires not less than 24 hours to dechlorinate. In some cases, it can even take up to 5 days for the chlorine to evaporate from your water fully.

Can fish survive in tap water?

Yes, fish can survive in tap water only in one condition when it is properly treated with chemicals. You can fill your aquarium with regular tap water if you allow it to sit for several days before adding fish (chlorine in tap water will kill the fish). Fish have only a few hours to live in tap water. Chlorine in the tap water will kill the fish if it is present. This is true whether it is from a tap or a well. It is hazardous to put fish in tap water that is not treated with the appropriate chemicals. Change 25% of the water in your fish tank every 2-4 weeks. Fish cannot survive in tap water unless it is properly filtered and dechlorinated. It is permissible to change the tank water every day as long as the pH level is between 7.8 and 6.7.

Steps for changing tap water

If you use tap water, allow it to sit for 3 days first.

Always test the water quality daily to ensure balanced pH levels.

  • Smaller tanks change out 10-15% of the water each week.
  • Larger tank, change 20% of the water each week.
  • Use a de-chlorinator before pouring fresh tap water into your tank.
  • Test the water quality daily to ensure balanced pH levels.