Having a hard time on figuring how to setup betta fish tank without filters? Don’t worry as this article will be a game changer for you and your fish!!

Betta is a stunning fish with vibrant colors and wonderful fins. It needs a home in which it may live a stress-free and healthy existence.

Betta is commonly kept in a small bowl, which does not guarantee that it is having a happy life because betta might develop unwell in such conditions. Betta should not be kept in a tank less than 5 gallons. It is best for betta if you utilize a larger tank. Betta requires space in the tank to swim and caves to hide in. It is also advantageous for this fish if your aquarium has real plants.

Plants may convert betta waste (which is poisonous because it releases ammonia into the water) into nitrite (which is still poisonous and can kill fish) and then into nitrate, which is less toxic for fish and can be eliminated by cleaning the water on a routine basis. This post will bring you through a simple 3-step process for creating the perfect habitat for your Betta without the use of filters.


Step one: Betta Fish Tank and Accessories Selection:

Size Does Matter When Choosing Your Betta’s Tank:

Unfortunately, betta fish are frequently kept in small plastic containers. The fact is that this causes bettas to become ill and have a miserable existence. Bettas aren’t meant to be housed in little bowls or tanks just because they come from shallow streams.

But that isn’t you; you want your betta to be happy and healthy, to prosper. Your tank should be at least 5 gallons — the larger the merrier. And 5 gallons tanks hold the smallest amount of water required to start the Nitrogen Cycle. Yes, with smaller tanks, it is feasible, but it is a tedious and time-consuming operation. If you’re still seeking for an appropriate tank, have a look at our choices in this page.

Do Betta Fish Require Filtration?

Even though bettas are native to quiet waters, they require the usage of a filter. A filter will aid in keeping your tank clean by reducing the quantity of hazardous germs that might cause disease. Bettas have long, flowing fins that make swimming in strong currents challenging. As a result, you’ll need to invest in a ‘gentle’ filter.

Check to check if the aquarium you desire comes with a filter. If not, invest in one that is appropriate for you. Use a filter with a GPH 4 times bigger than the size of your tank to achieve the optimum filtering. GPH stands for gallons per hour, and it refers to the amount of water filtered every hour. A 5 gallons tank, for example, would require a filter with a flow rate of at least 20 GPH.

Is a Betta Fish Heater Necessary?

Bettas are native to Thailand’s tropical seas, so you’ll need to invest in a heater. You should get a completely submersible heater capable of maintaining a temperature of 78-80 degrees Fahrenheit. You also need to be able to keep an eye on the temperature. When the temperature goes too low, illnesses like Ich become more prevalent.

If you set it too high, your Betta will age faster. Choose a heater with a thermostat to make it easier to keep track of the temperature. Also, use a separate thermometer because heater readouts aren’t always accurate. Never use a heater on a tank that is less than 5 gallons. Because the water temperature warms and cools too quickly, it might be detrimental to your betta’s health. But it shouldn’t be a problem because you’re not going to keep your amazing betta in a tank smaller than 5 gallons.

Step 2: How to Put Your Betta’s Tank Together?

The Aquarium’s Preparation and Placement: Begin by cleaning your tank with only water and no soap. Then pick a sport that is close to a window but not in direct sunshine. Make sure the surface is smooth and firm – you might want to invest in a stand that can support the weight of your tank. To accommodate for the filter, leave a five-inch gap between the aquarium and the wall. If you have other pets, you might want to keep your Betta in a room where they can’t get to it.

Setup Your Filter: Because no two filters are the same, different installation procedures are required. The instructions on filters are frequently inadequate. I’d suggest looking out clear videos on how to set up your filter on YouTube. Make sure your filter isn’t turned on until your tank is completely full with water.

No filter: Bettas require an oxygen-rich habitat, which you may achieve by adding living plants. If you don’t have a tank filter, you’ll also need to make regular water changes. In a no-filter aquarium, we recommend a 40 percent water change every three days.

Filters can also create a water flow that is quite harsh for bettas. The tank must be maintained at ambient temperature and extensively planted in order to have a betta fish tank setup without a filter, heater, CO2, or fertilizer.

Add Gravel to the Mix: Rinse your gravel under cold running water to eliminate any dust that might clog your filter. Soap should not be used. Then fill the tank with gravel. Remember that you’ll need at least two inches of gravel if you’re utilizing actual plants. One inch will suffice for silk plants.

Fill it with water: Fill your tank by placing a plate on top of your gravel and pouring water on top of the plate. You may avoid moving the gravel by using a plate. You’ll want to keep an eye out for leaks during this procedure.

Don’t completely fill your tank; leave approximately an inch at the top. Your Betta is an anabantoid, which means it uses a special organ called a labyrinth to breathe the same air as you and me. It might be harmful to your Betta’s health if it is unable to use its labyrinth on a regular basis. That’s why you’ve left a space. Filling your tank to the full is perilous since your Betta is a remarkably good jumper. Remember to take the plate off after you’re done.

Turn on your heater (If no heater is present): It’s very likely that your heater will come with suction cups to help you connect it to your tank. Turn the heat to between 78- and 80-degrees Fahrenheit, as directed in the guidelines. Place your thermometer in a convenient location where you can readily check the temperature. You don’t need a heater if the water temperature does not drop below 24 degrees Celsius where you reside. A heater is also unnecessary if the tank is kept at ambient temperature inside the house. Using a thermometer, keep an eye on the temperature of your tank.

Also Read : Best Algae Eaters For 10 Gallon Tank

Step 3: How to Get Your Betta Used to Its New Tank? 

Choosing the Right Healthy Betta When Purchasing a Betta: Wait until your tank has finished cycling before purchasing your Betta. It will just make the move easier. It’s time to go get your Betta after your tank is finished. Here’s how you can determine whether a Betta is in good health. 

  • The body is bright, and the fins are unharmed.
  • If it’s flaring at another Betta or you, it’s energetic and swimming well.
  • There are no abnormalities (missing eyes, fins, or scales etc.)
  • There are no white specks or fuzziness (signs of disease)

Finally, show your Betta about its new tank: Don’t put your new Betta in your aquarium just yet. It will cause your fish to get stressed, and it will almost certainly result in tears. You must acclimate it to its new surroundings. Your Betta will arrive in a bag with its own water, which will differ from the water in your tank.

Float the bag in your aquarium, unopened, until the water in the bag becomes the very same temp as the water in the aquarium. Be patient as this may take up to an hour. Begin adding little quantities of your tank water to your Betta’s bag after the water in it achieves the same temperature as the water in your aquarium. Allow your fish to swim easily into the tank once the most of the water has been removed from the aquarium.


Betta fish are wonderful pets that ought to be cared after properly. After you’ve gone through the right way for cleaning its tank, make sure you take good care of it. This implies that you should feed it. Betta gives food approval once a day, taking care not to overfeed it. Once a week, do a 20 percent water change to keep the environment healthy. Check pH, ammonia, and nitrate levels, and rectify any problems. Also, be sure to clean the aquarium on a constant schedule. You’ll need to perform this once every few weeks if you’re using a filter. If you implement this instruction, you’ll have a healthy, happy Betta as a buddy for years to come. 


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