There have been many debates about the necessity of Betta fish having a filter in their tank or not. Many fish keepers agree if their other fish need a water filter the Betta obviously does, too. On the other hand, rice paddies and river basins in Southeast Asia represent a Betta’s natural habitat, with little to no moving water. Water movement can effect its swimming, as its large, heavy fins act as sails and it is a slow swimmer also, especially the long-tailed varieties whom suffer from being dragged by the current or trying to swim against it, causing a lot of stress. The following filters are suitable for Betta fish and will not cause them so much stress: Sponge filters are the oldest type of filter used, bearing the great advantage of being powered by water pumps, thus giving you the opportunity to adjust the water flow. Many aquarists think this type of filter requires too much space or is unattractive, but this filter has no dangerous inlets that can suck up young fry, which makes it the best for betta breeding tanks.

Like sponge filters, under gravel filters are powered by a water pump. Though they work with a powerhead, is not recommended, as power heads create too much water movement that can prevent  free swim.best filter 4ft fish tank If using an air pump, you can get a cheap valve and adjust the water flow so your Betta will not be disturbed.betta fish tank habitat Many canister filters have controls for water flow, which is very helpful when you have a Betta. best magnetic fish tank cleanerThis is a great opportunity since Bettas cannot swim against strong currents.aqua one aquarium filters

As so many models are available on the market, you must make sure you choose one with adjustable return flows and is designed for your tank dimensions. aquarium air pump with filterThe only disadvantage with these filters is the high cost compared to other filter types.aquarium air pump manufacturers china Check out my review on the best canister filter. It has been debated if these filters actually work for Betta tanks or not considering most of them have strong return flows, which can effect Bettas swimming and stress them a lot. The advantage is some models have bio wheels that help dissipate the return flow and also give beneficial bacteria a place to develop. If you already have a water filter that might be too strong and does not allow you to adjust the water flow, you can always reduce the flow yourself by using these hacks:

A baffle may be anything blocking or redirecting the return flow, thus helping the fish feel more comfortable. It’s very easy to make it yourself by using the mesh screen from a cheap tank divider kit. You can cut it     in a narrow strip and place in front of the filter to dissipate the water flow. You can also place a soap dish in front of the water outlet to slow down the water flow, but be careful to use a clean dish, as those that already held soap may be toxic for the fish. Plants and decorations may reduce the water flow or create barriers to make the fish feel more secure. They also provide hiding places and make your aquarium look more beautiful. You can do this by using pantyhose. Actually, Betta keepers have been using this method for a long time in order to reduce the water current. Take a piece of pantyhose and wrap the filter intake in it, then secure it in place with some rubber bands. This not only helps reduce the water flow, but also helps reduce damage to the Betta’s sensitive fins.

Whenever you think of housing Betta Splendens, you will know which kind of filter is good for them. Or, if you already have one, which kind of filter would suit them best.For choosing the best filter for a small 3/4/5 gallon fish tank which stock Betta fish or other small fish, you should choose one that not only ensures the water clean and clear but also generates a gentle flow rate in order not to stress the fish. So what I’ll do in this post is to cover some of the best aquarium filters (include internal/external power, canister, corner, sponge filters) for small tanks with small fish or Betta that you can choose from based on your needs and budget. Model: Tetra 26316 Whisper Filter PF10 Type: external power filter (HOB) Ideal for: a 5-10 gallon fish tank Filter media: medium Whisper Bio-Bag cartridge. You may keep small fish like Tetras, Guppies, Bettas or shrimps in your small tank and having a too strong filter will suck the fish into its chambers.

Beside too strong water output produced by the filter causes very fast water movement that can stress the fish by forcing it to keep in constant movement with no rest. The Tetra 26316 Whisper Filter PF10 with its proper output would be an ideal filter for your 5 gallon fish tank. Model: Tetra Whisper 10i internal power filter Type: internal power filter Rated for: 3-10 gallons If you love to use traditional in-tank filter, this filter is a great choice for small tanks from 3 to 10 gallons. The filter uses a medium Whisper Bio-Bag cartridge to keep the water clear, remove odors and discoloration. The cartridge is very cheap, easy to assemble, easy to replace and needs to be changed once a month. Model: Deep Blue Professional ADB88700 Biomaxx Nano Filter Ideal for: Betta fish tanks, aquariums up to 4 gallons Filtration types: mechanical and biological. Deep Blue Professional ADB88700 Biomaxx Nano Filter can do well for small Betta fish tanks or aquariums up to 4 gallons.

Moreover, the filter come with an adjustable flow control knob make it perfect for Betta fish as well as other small fish which love to live in gentle and clean water flow. Deep Blue Professional ADB88700 Biomaxx Nano Filter The inside of this filter is a abundant place to contain filter materials that ensure your aquarium water is properly purified and ideal for stocking fish. You can use the filter cartridge coming with the product or buy your own filter media to set up the filter as you want. You can buy some ceramide rings or Bio-sponges to add to the filter to perform the most biological filtration keeping your fish healthy. Model: AZOO Mignon Filter 60 for nano aquariums Ideal for: aquariums up to 3.5 gallons with Betta or other small fish AZOO Mignon Filter 60 for nano aquariums This is also an ideal filter for small tank with Betta or other small fish. The filter is loved by its powerful features such as small compact design, very quiet performance, easy maintenance.

The large filter chamber of filter make it a good filtration system. With its design, you can buy and use your own filter media as you think best for your fish. Flow rate (gallons per hour):  80 GPH Ideal: 5 – 10 gallon aquariums Filtration types: mechanical, biological, chemical Used for: freshwater or saltwater aquariums Includes: sponge, bio ceramic, carbon media, spray bar system. A power filter is just strong enough to keep your 5 gallon aquarium clean; however, if you want to use a canister filter for the tank except that it is more expensive than the other filters, the Zoo Med Nano 10 external canister filter will make you love it. This canister filter can perform all 3 types of filtration (mechanical, biological, chemical filtration) that keep your small tank clean and clear. As you seen in the product picture, the large capacity of the filter offers to accommodate more filter media for the best filtration. You can choose your own filter media that you like best without necessity to use ones included in the product.

Besides, a spray bar included make it a serious competitor of other filters. Recommended for: 3 – 5 gallon tanks, can use more than one sponge filter for larger size tank for efficiency Filtration types: mechanical and biological Filter sizes (D*H): 2. 2″ x 2. 8″ (5. 5 x 7 cm). A good fish tank filter to use in a small fish tank setup is the aquarium sponge filter. Being powered by an aquarium air pump, the suction is distributed throughout the sponge so it will not suck up even a small fish and is ideal for breeding or fry fish tank. Besides, an aquarium sponge filter will provide sufficient mechanical and biological filtration to keep your fish tank clean and clear. The sponge filter is very easy to set up and maintain. To clean the sponge filter, just remove the sponge and give it a couple of squeezes in a bucket filled with the old aquarium water (NOT tap water) to remove the large debris but not kill the helpful bacteria. For tank sizes: 3 – 5 gallons

Filter sizes: H 7. 5 cm, L 8 cm. Corner filter works very similar to the sponge filter, they are powered by aquarium air pumps. So these filters don’t stir up the water too strong that makes them the best filters for Betta fish tank as well as for other small fish that don’t like to live in the turbulent water. Honestly, if you’re just starting off fish keeping, having a small fish tank is really not a good idea. A small aquarium contains a small volume of water (obviously) which tends to shift conditions a little too rapidly to be easily controlled. Temperatures change very fast, pH levels fluctuate rapidly and waste build up is frequent, making it require a little more maintenance than a larger fish tank. As you know, a 20 gallon aquarium is recommended for a beginner because it is easy to maintain this size tank than smaller ones. Small fish tanks are often sold as a complete setup like the Marina LED aquarium kits which you can get online or any pet store.

These kits usually comes with a hood, lighting and a small filter for small aquarium. However, if you don’t like to buy a kit or you are finding a new supply to replace the old one damaged, you must choose the right type fit for your small tank in order not to disturb the peaceful life of fish. You will need to perform your weekly a quarter water change for your small fish tank to ensure that the environment you create is ideal to maintain the aquatic life you are keeping. A good filter may reduce the frequency of water change, however, it’s a must to ensure the health of your fish. The last point to keep in mind is the number of aquatic life you plan to have in there. Don’t immediately dump in a bunch of fish into the water from Day 1. Firstly, a small fish tank will not support too many fish so keep it to a minimum. If you do plan to have a few more fish in there, take it in stages. Putting too many fish in at one time will raise the nutrient level in the tank, causing a bacterial bloom which will cause cloudy water harmful to the aquarium lives.