Betta Fish Water Conditions

Betta fish is a one-of-a-kind species of fish. This species of fish is prevalent in the Asian part of the world. They live most of their life in ponds, slow-moving streams, shallow waters, and even marshes.

The best temperature for betta fish should be between 76°F and 80°F. Betta fish will survive and live successfully in water of neutral pH. The extreme they can cope with is 7.5 and 6.5. The water should contain certain minerals.

Having a betta fish is cool, but not providing adequate water conditions could result in the untimely death of the fish. Betta fish are susceptible to change in the conditions of the water they are in, thus making them vulnerable to the sudden change of water conditions.

Betta Fish Water Conditions

Water Temperature

Betta fish are tropical fish. They are very picky at times. The temperature for betta fish should be maintained and regulated to avoid adverse temperature. Temperature changes affect betta fish. If the right temperature for the water is not maintained, the death of the fish is inevitable.

The fish are very fragile, and they react to sudden changes in the temperature. The ideal temperature for betta fish ranges from 70°F to 80°F. Exceeding this temperature could lead to an adverse effect on their health. They might survive if you exceed the temperature, but successfully surviving is not guaranteed.

Betta fish would prefer to be too warm over being too cold. It is advisable to keep the temperature of the tank at optimal level. You can do this by heating the container to the desired temperature. And if the water is too warm, you can as well reduce the temperature of the water to the desired temperature.

To maintain the required water temperature it is recommended to purchase an aquarium heater, I recommend you check out the reviews of heaters on amazon to select a good heater.

pH Level

The pH level of the water in the aquarium is one of the primary factors that affect the thriving of betta fish in the water. The pH of the water defines how acidic or alkaline the water is. The acidity or alkalinity of the water affects the betta fish’s survival.

The best pH level for betta fish is 7. 7; thus, indicating a near-neutral pH level. This pH level means the water is neither acidic nor alkaline. It is the best pH for betta fish. If you have to exceed this pH unavoidably, then the extreme it can go is 6.5, which denotes slightly acidic and 7.5, which denotes slightly alkaline.

If your water has low pH or subsequently, high pH, you have to correct it to provide an ideal water condition for your betta fish. To raise the pH level of your water, you should add coral sand (Available from Amazon), because it contains calcium, which increases the alkalinity of water. If your water is then too alkaline, you should add peat moss, Indian almond, or even drift moss to the tank water to increase its acidity.

You can also purchase pH Tester kits from amazon which you can use to monitor the pH levels in your tank.

Tank Size

It is a common saying that betta fish live in puddles, so; they do not require much space to thrive. However, this saying is not entirely true. The area in the tank is a crucial factor when it comes to betta fish. Betta fish are known to be playful; therefore, they need ample space to exhibit their freedom.

You might be thinking of putting your betta fish in a bowl, but if I were you, I wouldn’t consider that an option. A betta fish needs at least a 2.5-gallon size of the tank to thrive. It will also make the tank very easy to clean. It gives the betta fish plenty of space to move.

tank size

Benefits Of Adding Aquarium Salt

Aquarium salt is an exceptional kind of salt. It isn’t special because of its difference from other common salts, but it is unique because of the work it does. Aquarium salt, unlike other salts, does not contain trace elements and iodine. It is typically composed of sodium and chlorine, and it is purely sodium chloride. Aquarium salt does not contain sugar, color, or artificial additives. It is mainly sodium chloride NaCl.

Aquarium salts help reduce the nitrate level of the water. It also helps reduce the nitrite level of the water. Aside from reducing the nitrite and nitrate level, aquarium salt also helps kill parasites in the water. It reduces the number of parasite present in the tank. Also, it prevents methemoglobinemia. It also helps gill and kidney to function very well.

Risk Of Overfeeding

Just like every other animal, overfeeding makes betta fish very uncomfortable. If you don’t quickly attend to this, it can become a life-threatening issue. When betta fish overfeed, it causes bloating and constipation.

Constipation in fish occurs when a food doesn’t digest in the fish’s belly. This indigestion can bring about a very uncomfortable situation for betta fish. Bloating is very similar to constipation, only that bloating is more complicated than constipation.

You can easily identify constipation and bloating by swollen belly and restlessness. Aside from the problem of overfeeding, too many food particles in the water make the water toxic. Overfeeding has caused more death among betta fish than other causes of death.

betta fish feeding

One of the problems of constipation is swim bladder disorder. This disorder affects the swimming abilities of these fish. You can detect when your fish has swim bladder problems quickly. They tend to get stuck at the bottom of the tank or stay unbalanced at the surface and during swimming. If they are unable to come to the surface, they might end up drowning and dying.

Filtering System

The filtering system for betta fish is beneficial. It isn’t compulsory to make use of a filter system. But depending on the condition of the fish and the water, you might want to consider making use of a filter system. Making use of a filter system solely depends on the aquarist’s discretion. If it seems that a filter system is needed, then it should be used.

The filter system helps regulate certain things in the tank. It helps keep the tank clean and also free from some organisms. The use of a filter system can depend on the size of the fish tank. If the fish tank is small and a filter system is in use, the current in the tank will increase and can cause the betta fish to have a problem in swimming.

Betta fish prefer slow-moving water or still water. They are not very good at swimming, thus making it very difficult for them to swim in tank water with high current. It is best to introduce a filter system in a big tank rather than adding it in a small container.

Frequent Water Changes Are Important

Frequently changing the water of your tank is an essential task. At first, it might seem like a waste of time, energy, and resource, but in the long run, it ends up paying. Nitrate and ammonia can cause significant harm to betta fish. They are not very visible in the water, but as much as they are not viewable, they still endanger the lives of these fish.

The water should be changed frequently to maintain the right water conditions in the tank. It helps get rid of ammonia caused by waste and food particles in the water. It also helps get rid of nitrates in the water.

The water in the tank should be changed frequently. It helps support adequate health conditions for the growth and thriving of betta fish.

How To Maintain A Constant Temperature

Since temperature is a factor that affects the successful thriving of betta fish, then it must be kept in check. The temperature of the water should be maintained. Maintaining the adequate and correct temperature for the water provides certain health benefits for betta fish.

Depending on the climate, the water can either be too cold or too hot. Either of the two, it isn’t advisable to maintain extreme temperatures. When the water feels too warm, you can make the water cold by adding some ice blocks. This valuable addition reduces the temperature of the water to the desired temperature. Likewise, if the water feels too cold, you can heat the water by different means to the desired temperature.

A thermometer can help you keep track of the temperature changes. They can help you maintain the temperature of the water. Regular water change is also an effective way of managing the constant temperature.

You should also keep the tank in a better place. You shouldn’t keep it where the water can heat up by the impact of the sun. Likewise, you shouldn’t keep it where the water can become cold. You should also aerate the water at intervals because the higher temperature of the water results in a low oxygen level of the water.

Maintaining the temperature is a very critical task as it includes paying attention to changes in the warmth. A change in the heat can harm the health of the betta fish.

What Happens If The Water Becomes Too Hot?

When the water is too hot, it affects the external and internal metabolic process of the fish. When the water is too hot, there will be little oxygen in the water. This reduction in available oxygen will cause the fish to look for oxygen erratically.

You will notice them going to the surface of the water frequently to make use of the atmospheric oxygen. You will also see betta’s disturbed swimming.

With their disturbed swimming, their metabolic rate tends to increase, resulting in the burning of energy that should help them grow. When bettas are out of active energy, they get tired, and in the long run. It tells them about their health. It might also lead to their death if not taken care of as soon as possible.

What Happens If The Water Becomes Too Cold?

As much as too hot water affects betta fish when the water is too cold as well, it also affects them. When the water is cold, especially when below 75°F, it reduces the metabolic rate of betta fish. Betta fish find it very difficult to function appropriately under severe conditions.

Cold water makes the fish suffer lethargy. They refuse to eat in cold water and will end up in starvation. They also tend to swim at the bottom of the tank to enjoy the warmth of the water.

In cold water, they become vulnerable to bacteria due to their low metabolic rates. They are also susceptible to disease and infections in cold water. In stressful situations, they fall into a coma that might lead to their death in the absence of proper care.

How Long Can Betta Fish Live In Cold Water?

Cold water is not suitable for betta fish. It makes them sluggish, and it also makes them fall sick more often. It makes them vulnerable to bacteria and bacterial infections and diseases. They end up starving because they do not eat very well in cold waters.

Betta fish can live for about 3 to 6 months in cold water. If you keep them in cold water for a very long time, they develop certain infections. They also tend to swim at the bottom of the tank and may end up slipping into a coma.

This coma, at times, can lead to death in the absence of adequate care. It is advisable to rear your betta fish in the appropriate temperature conditions as the extreme can lead to the adverse health of the fish or even much worse, death.

How Can You Tell If A Betta Fish Is Cold?

Different symptoms show that betta fish is cold. Most of these symptoms are apparent and easily noticeable. These symptoms include:

  • When a betta fish is cold, they tend to fall sick frequently.
  • Whenever your betta fish stay more at the bottom of the tank, you should know that it is in search of warmth, and it is cold.
  • They tend to breathe very rapidly.
  • Betta fish also swim erratically.
  • They also tend to stay at the surface.

Will Cold Water Kill A Betta Fish?

Cold water causes a great deal of harm to betta fish. Despite cold water causing significant damage to betta fish, the question is if it is capable of causing the death of betta fish?

Yes, cold water can cause the death of betta fish. This ability is because cold water slows their immune system. It also reduces their metabolism rate, making them vulnerable to diseases and infections. These infections can end up taking their life. So, it is feasible that cold water will kill betta fish.

These infections can lead to the death of betta fish if they lack the necessary care. The constant temperature of the water should be maintained to avert the potential death of your betta. This care will help stabilize the immune system and the rate of metabolism of the fish.

Why Does The Temperature Need To Stay The Same?

The temperature of the water needs to remain constant because a constant temperature is what betta fish need. It does not mean it has to be the same at an adverse temperature, like too cold or too hot. It has to be constant at the appropriate temperature.

Cold water reduces the immune system and metabolism rate of the fish, making them susceptible to diseases and infections. Hot water increases their metabolism rate, making them use up their energy quickly and also reduces the amount of oxygen available for them. It will make them very uncomfortable and also make them age sooner than usual.

Either way, death is most likely to be the end product if not taken care of correctly and in time. To avoid this scenario, you can ensure that the temperature of the water is in check, regulated if deviated from course, and also kept constant.

It is crucial for the temperature to be in check, and it also needs strict monitoring. When the temperature becomes too cold, then you have to heat the water while when it becomes too hot, you have to cool it down for the sake of the fish.

Make Any Changes to Tank Temperature Gradually

Betta fish are very fragile and sensitive. If there is a change in the environmental condition, the fish are quick to detect it, and if the change isn’t favorable to them, there would be unfavorable effects.

So, if you want to introduce a change in the environment, it has to be done gradually so as not to irritate the fish. A sudden change might affect them, and you wouldn’t want that, would you?


For your betta fish to thrive, certain water conditions should be in place. These conditions are the ideal water conditions that help keep the fish agile and healthy.

The pH of the water must be kept in check. It should be neutral, and if not entirely neutral, it should be slightly alkaline or acidic and not extreme.

The temperature should be between 76°F and 80°F. The temperature should also be kept constant. This range will enable the healthy living of the fish. The water should also contain certain minerals and trace elements. It allows the water to serve a particular purpose to the fish and other aquatic living organisms.

The above-water conditions are to be taken note of as they are instrumental in the healthy living of your betta fish.