Why is it often believed that combatants do not need a filter?In its natural state, the combatant lives in rice fields and shallow water bodies. During droughts, a wild betta splendens can even end up in a cloudy puddle for a while with very little oxygen. Fighters are able to survive in these conditions thanks to their ability to absorb oxygen from the air (on the surface of the water) instead of depending solely on their gills. Because of their tolerance level in low oxygenated water, fighters are frequently recommended for beginners, and there are many misconceptions. We often hear that fighters prefer small habitats and that they can live in a ball. These claims are false and can make the fish sick and seriously reduce their life expectancy.
The filter is not compulsory but maintenance is much more difficult without!A badly chosen filter can do more harm than good if its flow is too powerful. A filter can easily cause too much current in small aquariums, which can mistreat fighting fish. Indeed, the fighters sold in pet stores were selected to have large fins, which is aesthetic but very impractical for swimming. Too much current can tire them and make them die of exhaustion. However, water quality decreases rapidly in low-volume unfiltered aquariums. Uneaten food and feces cause ammonia, nitrate and nitrites to form, which build up much faster when there is no filter. Caring for a filterless fighting fish may seem simple, but it actually takes a lot more work because the water changes have to be more regular. Unfiltered aquariums require 3 water changes of around 20% each week to stay perfectly clean. In addition, it is necessary to change most of the water at least once a month. You should also use tests to analyze water parameters in real time. In addition to the water changes, it is necessary to regularly clean the waste that is deposited on the bottom of the aquarium. For this, use a suction bell specific to the aquarium hobby, which will simplify your task.
To remember for a fighter aquarium without filter:
- Make three water changes per week, 20% of the total volume each time.
- Take the opportunity to clean the floor with a suction bell
- Use nitrite tests to make sure the water is clean
- Change half of the water once a month
The fighter in a filtered aquariumThere are many filters you can buy if your aquarium doesn’t have an original one. The possibilities are vast: internal filter, suspended filter, external filter. Find here our complete guide to the different types of filters for aquariums. The most important feature for bettas is the filter flow, having an adjustable flow is crucial. Your betta should be able to swim freely without difficulty. If your aquarium does not have a suitable filter, you can buy one separately. In this case, choose a filter with a lower flow than what is usually recommended , the fighters need calm water.
Benefits of filtered aquariums for fighters
- Waste reduction – elimination of excess food, excrement, ammonia and bad bacteria.
- Better oxygenation – filters help oxygenate water.
- Good bacteria – beneficial microorganisms accumulate in the filter media.
- Simplification of maintenance – reduction of maintenance and the water cycle.