How To Care For Your Pet Fish? (10 Important Tips)

Learning how to care for your pet fish as a beginner should be your first step. For keeping fish alive, you have to clean your tank constantly and feed them the right kinds of fish food.

Fish make gorgeous and exciting pets, and they can make a wonderful addition to your home. According to a survey by the National Pet Owners Association, over 13 million U.S. households keep fish as pets, making them the third most popular pets after dogs and cats.

Adding the right aquarium lighting and choosing the right fish foods can help keep a healthy fish. This post will cover the basics of how to care for your fish.

10 Tips For Taking Care of Your Pet Fish

How To Care For Your Pet Fish

Taking care of fish might seem like a daunting task, especially for first-timers. Fish are notoriously delicate, and you can easily harm them due to a lack of knowledge. Here are ten crucial different pet fish care tips:

#1 Provide enough space

Providing sufficient space is one of the most important aspects of taking care of fish. A large aquarium ensures the fish has enough space to explore, swim and grow. It is also easier to maintain – balancing the pH and temperature is easier with a large fish tank than with a small one.

#2 Don’t introduce new fish into the aquarium straight away

If you have an existing aquarium with happy fish and cycled water, and you want to add new fish, don’t add them straight away to avoid introducing diseases or parasites into a healthy tank.

In addition, introducing new fish to a new environment and mates may make them anxious and agitated, and stressed fish may not survive the initial conditions. You should quarantine your new fish for about two weeks to give them time to acclimatize and get time to treat them for any diseases they may be carrying.

#3 Keep the home aquarium water balanced

A proper environment is critical for underwater creatures. Consider the following things to keep the water balanced:

  • Maintain proper pH levels: If the water is too acidic or alkaline, it can be fatal for the fish. You need to have a pH test kit and learn how to alter the pH, if necessary. Remember, different fish species require different water conditions, and you should research the ideal pH level for your fish’s species.
  • Condition the water: Tap water contains a lot of properties that should be balanced to support aquatic life. Use a biological aquarium supplement and dechlorinating agent to condition the water properly.
  • Stabilize the temperature: Water temperature changes can cause great damage to aquatic life. Your aquarium should not be near a window that gets a lot of sunlight or next to air vents. You should acquire an aquatic heater to maintain the ideal temperature.

#4 Keep the aquarium clean

To keep the water clean and clear, ensure you replace it at least once every month. It also helps to control the concentrates in the water. You can use a gravel vacuum to siphon the water and other unwanted materials. If you don’t have one, you can transfer the fish to a different container and replace the aquarium water.

Removing excess algae from the sides of the tank also helps to keep the fish environment clean. Excess algae deplete oxygen in the tank and make the aquarium look dirty. Removing excess algae growth and other unwanted plants also helps to balance the pH levels.

#5 Feed your fish properly

How much you feed and how you feed your fish is a crucial part of providing a healthy environment for them. There is much more to feeding the fish properly than sprinkling a few flakes in the aquarium a few times a day. However, feeding the fish the right food can be overwhelming, especially for a first-time pet fish owner, and the fish food section in a pet store doesn’t help.

First, you need to learn about the fish species in your aquarium and start by establishing what their ideal diet comprises. Normally, most pet fish owners keep a variety of species, so the best thing is to feed them a combination of different types of foods. The type of fish you can choose from include:

  • Dry food: Flakes are the most common method of feeding pet fish, but it’s not the only dry fish food. Dry fish food also comes in pellets, granules, sinking, and floating varieties.
  • Live food: Options include crickets, live brine, or feeder fish.
  • Frozen food.
  • Freeze-dried cubes.

Once you have determined what to feed your pet fish, ensure you don’t overfeed them. Just as is with humans, overfeeding can have adverse effects on the health of your fish.

It also increases the amount of waste in the tank and leads to dangerous rises in nitrite and ammonia level. A general rule of the thumb is to feed your fish what they can consume in under three minutes.

#6 Consider segregation the fish tank

You could be creating trouble if you mix aggressive fish such as beta fish with community fish such as goldfish. Similarly, you shouldn’t mix large fish with small fish. To ensure harmony, you can either consider getting fish of one general size or dividing the aquarium.

#7 Cycle your tank

Being so eager to set up an aquarium is a common problem with new aquarists. If it’s your first time owning an aquarium, you may be very eager to set up the tank, fill it with water and throw in the fish. You need to be patient and let the water break in and go through a nitrogen cycle to make the tank livable for your fish.

By cycling your aquarium, there are beneficial bacteria that form and grow inside the aquarium and help to eliminate toxins such as nitrite and ammonia that can be harmful to your fish. Constant aquarium cleanings will be necessary.

#8 Properly aerate your aquarium

While there are many factors that contribute to the health of your fish, keeping the aquarium properly aerated is one of the most important factors. Proper aeration allows the fish to breathe properly, which is crucial for good fish health.

The best air diffusers and pond aerators help to circulate the water to prevent it from becoming stagnant, help to decompose fish waste and leaf debris, and stimulate important pond bacteria.

#9 Constantly monitor the water temperatures

You ought to start by discovering the actual temperature of the aquarium so that you can determine the ideal temperature. In general, fish do well in temperatures between 75° and 80° Fahrenheit (23° – 27° Celsius), but specific needs will depend on the types of fish.

It is best to investigate the preferred temperature range of the fish in your tank and take the necessary steps to keep your tank within that range.

Check the temperature every time you see the tank by attaching a stick-on thermometer to the side. Keeping this thermometer installed will make sure there are no unusual changes in the temperature.

#10 Add live plants to create a natural habitat for your pet fish

Having live plants in your fresh water tank provides so many benefits. Their primary purpose is to aerate the water and convert harmful chemicals into oxygen. As opposed to plastic plants with sharp edges, they also reduce algae growth, look good, and care for fish fins.

The plants in an aquarium can outcompete algae for nutrients and outcompete them to a great degree. Once the aquarium is correctly balanced, the live plants will reduce the need to scrub algae off the decor, allowing for the aquarium to remain free of algae.

Do I need to check the ammonia and nitrites levels in my tanks water?

Aquatic nitrite and ammonia levels rise up rapidly in newly set up aquariums, resulting in fish loss.

To maintain the health of your fish, you should test the aquarium water regularly. Maintaining an aquarium involves many expenses, one of those expenses is the cost of a test kit.

If you cannot afford test kits themselves or feel uncomfortable testing water yourself, try to find out how much your fish shop charges for conducting water tests.

Free water testing is offered online by some companies, or at least one free test each month. Others will charge a flat fee for monthly testing. Try out some test kits to see the actual costs.

What type of aquarium fish should I start with?

Freshwater Fish or Freshwater Tropical Fish are bred in fish farms in South Florida. If you have just begun caring for fish, they are a good choice to start with.

Fish like Guppies (Poecilia reticulata) are very easy to take care of and are one of the fish a beginner will find the easiest to keep. They don’t require much care to breed, which makes them suitable for putting in a 10-gallon aquarium.


All fish owners should make sure their fish are fed the right fish foods and that their water qualities are maintained. Pet food varies, and it mostly depends on the species a pet owner chooses.

Keeping fish alive, healthy, and happy is not difficult if you know what they need and provide it consistently. It may seem challenging at first, but with research and experts’ advice, you can create an amazing environment for your pet fish.

Last Updated on 19/02/2024 by Karen Snow