How To Keep Your Aquarium Fish Alive

By  //  October 9, 2020

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Fish are popular pets that create a great aesthetic addition to the home. To enjoy this, you need to keep your fishes alive.

Keeping your pet fishes alive requires attentiveness and intentional care. This is because fish are delicate and the environment in which they live directly affects their lifespan.

That being said, let’s take a look at how you can keep your aquarium fish alive:

1. Ideal Temperature

The temperature in the tank must closely mimic that of the fish’s natural habitat. If the temperature drops below the recommended temperature, which is 76° to 80°F (25° to 27°C), depending on the species, the fish will die.

An aquarium heater is required to keep the fish tank from dropping to an undesired temperature, keeping the temperature regulated, regardless of external factors such as air conditioners and room heaters. Thus, you won’t have to worry about the drop in temperatures during winter seasons because the fish are protected in the natural habitat that continues to maintain the ideal temperature.

You have to make sure that you get the right-sized heater for your tank. Ideally, the size and amount of water you have in your tank will determine the aquarium heater size. When picking a heater for your aquarium, you’ll notice that there are subversive, hanging, and external heaters.

• Submersive: This lies below the water level in your tank and must stay submerged in water for its efficiency.

• Hanging: This type of heater is similar to a filter and hang over the side of the tank.

• External: Also called as inline heaters, this type of heater is attached to the water pump, which is located outside of the aquarium.

You can get information regarding the size of the heater that’ll suit your needs from the experts, such as Fish Lab.

2. Tank Location

The location of your fish tank will also determine how the fish will thrive. Any drafts of wind in the room will alter the warmth in the tank. A cold gush of air breeze will make your fish tank colder. 

Even if you have tropical fish, it’s not recommended to expose your tank to direct sunlight. The aquarium heater is recommended for temperature regulation compared to sunlight. 

3. Tank Maintenance

Before you consider placing a fish in your tank, you have to make sure that it’s clean enough for the fish to live in, which can be done by using cloth and water. Avoid using cleaning products such as detergents and chemicals as this can contaminate the water. Once your fish are in the tank, you have to regularly clean the tank just as you clean your environment.

Food particles and fish waste will drop to the bottom of the tank. Leaving these particles to pile up over a period of time will make the environment too toxic for the fish to thrive. Thus, you must regularly take the fish out and place them in a fish bag or bowl to make room for cleaning and water replacement.

Once the fish has been temporarily moved, you can now empty the tank. Having cleaned the tank thoroughly, you can put back the substrate, provided that you’ve cleaned any decorating items you may have added in it. You can then proceed to add fresh water, run the tank, and then return the fish in the tank.

4. Space

A substrate is appreciated for its aesthetic appeal and imitates the fish’s natural habitat. However, the amount of substrate and items that you put in the tank shouldn’t cause the aquarium to look cluttered. Instead, the fish must still have space to wander around in the tank. Thus, it’s important to make sure that sufficient space is created for the movement.

5. Feeding

Overfeeding is a common accident that occurs when one has a pet fish. Fish are required to be fed only once or twice a day. The rule of thumb is that you add small amounts of food at a time–three flakes a fish. Don’t be alarmed if your fish don’t immediately eat the food. Eventually, they will.

Avoid constant adding of food in the fear that the fish didn’t eat when you already feed them.


Keeping your fish alive means constantly regulating the ideal temperature, finding the right location for the tank, maintaining the tank, regulating the amount of water, making sure that there’s space in the tank, and avoiding over-feeding the fish.

Fish are a beautiful addition to the family. Once you get used to the routine of nurturing them, it’ll become second nature.