Best Bottled Water for Betta Fish

Last Updated on August 9, 2022

Your betta lives 24/7 in the water you provide, so you must look after the water quality at all times.

Betta owners always want what’s best for their pets. Similar to other pets like dogs and cats, they each have their preference – in this case, what kind of water they prefer.

A betta’s needs may vary so be well-prepared in events such as your betta not liking its water even though you have added all the essential minerals and vitamins.

So there may be a bit of experimentation in this.

Gear up! Let’s talk about what kind of water bottle your betta needs.

What’s the best water for betta fish?

Betta fish live and can survive in muddy waters as they usually live in rice paddies, slow-moving streams, and ponds. These are a natural environment for them, thus, betta fish thrive and develop in such a way that their bodies can take any disturbances in the water when they live in these places.

A pet betta fish is not the same as wild bettas. They will need enough nutrients and require you to provide the safest water possible.

Making your water free of substances that are harmful to your betta should be your priority. Here are the main things to avoid:

  • Pesticides
  • Chemicals
  • Chlorine

These are the things you need to look out for, but other factors make a healthy water environment for your betta. Let’s talk about that below.

What’s the best bottled water for betta fish?

Bottled water is convenient, but not all of them are the same.

Spring Water

evian Natural Spring Water, Naturally Filtered Spring Water in Large Bottles, 33.81 Fl Oz (Pack of 12)

Bottled spring water is quite more expensive than typical tap water.

The good thing about bottled spring water is that it’s not processed, so the minerals and nutrients remain. There is no chlorine, and it’s a safer alternative than tap and distilled.

Purified or Distilled water

LIFEWTR Premium Purified Water pH Balanced with Electrolytes, 100% recycled plastic bottles, 500ml 16.9 Fl Oz Bottles(Pack of 12)

They process distilled water to remove all the chemicals and nutrients and minerals in it. This leaves you with pure water.

Distilled water lacks the minerals and nutrients that your betta needs, so if you plan to use it, you’d need to control the proper pH levels and add the right amount of nutrients for your fish to survive. Otherwise, your fish is unlikely to survive.

But, if you plan to go this route, it would be better just to use plain water instead and do the same treatment as you would if you used distilled water.

You must prioritize proper water treatment to ensure your betta survives and lives.

What water can I use for my betta fish tank?

fish tank during the night

Aside from bottled water, there are more water sources that you can use for your betta fish tanks.


Well-water is an abundant source of water but you still should take a step back in using it straight from the source in your betta fish aquarium.

Some wells are clean and purified already, which you can use for your betta directly. It acts as a more natural substitute as it comes directly from the ground and doesn’t go through the process of water, such as what distilled water goes through.

But natural water doesn’t always mean that it’s perfectly safe for a betta.

Before you use your well-water, get it tested for chemicals and impurities.

If it turns out to have harmful substances, you need to treat the water before you use it. But if it’s clean, then you’ll have plentiful water that you can use for all your betta’s needs.

Tap Water

While it’s so much easier to pour tap water into your fish tank, it’s not recommended, especially if you don’t know the substance your tap water contains.

Tap water has chlorine that’s harmful to the betta. It can affect the eyes and gills and will continue to be harmful as long as it’s present in your betta’s water.

It’s important to be mindful of the water that you use, as it’s where your betta will live 24/7.

The quality of tap water will depend on where you live, you could have the safest tap but you’ll never know without testing and treating.

Here’s what you can do to treat your tap water.

  1. Remove the chlorine – Collect your water and put it in a container. Let the chlorine dissolve. It will do so naturally as it’s air soluble. Leave it for at least 24 hours or more if possible. It will depend on how much water you collected and how long it’s exposed to the sun.​​​​​​​​​​​​​​
  2. Boil the water – We usually boil water to remove impurities. Same with the water you will use for your betta. Boil for about 20 minutes, more or less, and let it cool down before you use it for your betta. It should be about 78-80F or 25-27C.
  3. Use a carbon filter – Carbon filters are quite expensive but useful to your fish tank. You can use the carbon filter to clean any chemicals present in your water before you add your betta fish. Using carbon filters is recommended if you have multiple large tanks. You can even install it straight into your faucet, so you don’t need to worry. But, using a carbon insert may not be a good idea if you want to encourage plant growth as carbon removes a good amount of CO2 from the water.

Betta specific water

Water specifically made for betta fish is already pre-conditioned. They remove toxic chemicals and follow the correct pH level for bettas.

You’d have to pay a bit more because of its convenience. This is a perfect substitute if you have the budget and are not too keen on treating your water.

While it’s safe to provide your betta spring water that you drink, one specifically treated for your betta is better if your budget allows.

Best betta fish water conditions

best betta fish water conditions
Aquarian fish swims in aquarium water

Calm water flow with a pH of between 6.8 – 7.5 and a temperature between 76° to 85°F are the most basic must-knows of betta fish owners.

Then, you must provide the cleanest water possible. In doing so, here is our guide to help you keep your betta water safe and clean.

Clean and change the water regularly

You can change the water partially, about 15-20%, at least every week.

The frequency of how much water cleaning you will do will depend on the size of your aquarium and the number of fish in it.

If you have a filter and plants inside the tank, you can do a full clean-up every six months, more or less.

Without a filter, you may need to clean it fully every 5-8 weeks, as the buildup of waste products can be harmful to your betta.

Remove all the water and scrub the fish tank as perfectly clean as possible. Any impurities can be harmful if your betta accidentally consumes them.

Use a water conditioner

Water conditioner for betta contains healthy elements that your betta will benefit from.

  • Removes chlorine and harmful chemicals from tap water
  • Converts ammonia into a safer element or removes it
  • Provides a healthy slime coating
  • Promotes healing for injured betta

These are some benefits a water conditioner provides. But remember that water conditioners in the market are not all the same. One may have something the other doesn’t. So check all their labels and see which is the best bang for the buck.

Install a water filter

Fish tank filtration is essential if you want your aquarium to be clean. It helps neutralize ammonia present in the tank and keeps the beneficial bacteria that are helpful for your betta.

There are various filters available in the market. When buying one, check the durability, noise, size, and reliability. As always, read the reviews from professional betta fish owners who have a fair share of using certain filters.

Related: Can Betta Fish Live in a Bowl Without a Filter

Final thoughts

If you follow our guide above, you’ll have a healthy and safe environment for your betta. The best-bottled water for betta fish may vary depending on your betta. They may prefer spring water over tap water, just check and do the testing yourself to see which water they enjoy best. As long as it’s safe, that’s all that matters.

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