Freshwater Fish: 6 Things You Need to Know

Published On: February 13, 20211 Comment on Freshwater Fish: 6 Things You Need to KnowTags: Last Updated: February 8, 20244.1 min read

Having a freshwater fish tank in your home can be quite exciting. Fish are fun to have as pets, and the presence of a small aquatic feature in your personal space can add a simplistic element of beauty and help make the place more vibrant and lively.

Freshwater Fish

When it comes to choosing the right kind of freshwater fish tank for your fish, you may find yourself a little overwhelmed with the various options out there. In order to be able to care for your freshwater fish successfully and allow them to live a happy life, here are some things you should know.

Water Filter

When you buy a water tank for your freshwater fish, you will need to ensure the water inside the tank feels just like home for the fish. This means that the water movement needs to be just like that found in freshwater bodies with the right amount of healthy bacteria and essential nutrients. In order to ensure your fish are healthy and comfortable in the right kind of environment, you should invest in a water filter for your tank. The water filter will generate natural water movement and filter the water properly.

Aquarium Heater

Many fish owners do not realize that fish need a certain temperature level in their water in order to stay alive and well. Freshwater fish, in particular, need to have an aquarium heater in any tank they are placed in, especially during winter. The professionals behind point out that your fish can probably survive in room temperature water, but implementing a heater in their tank will make them more comfortable and less stressed which will help increase their lifespan. The key is finding a proper aquarium heater that is safe to use and can offer suitable heating results for your freshwater fish.


Just like the majority of other living beings, freshwater fish need a certain level of natural lighting in order to thrive in any environment away from their original home. Luckily, there are various options of artificial lighting out there that can substitute natural lights and give your fish what they need. The type of lighting you choose for your fish tank will depend on the size of the tank and your overall budget. There are different options that fit different people’s needs but make sure you do your research before investing in any lighting fixture.

Freshwater Fish - freshwater aquarium

Water Conditioner

Fish owners often think that they constantly need to clean their fish tanks by replacing the water occasionally. However, this can be quite dangerous to the well-being of your freshwater fish as they need some of the bacteria that collect in tank water in order to thrive. In order to ensure the water is clean enough, yet, keep the healthy bacteria for the sake of your fish, it can be a good idea to use some kind of water conditioner. These water conditioners help break down any toxic bacteria or harmful chemicals and only leave the fish with the bacteria they need and clean water to live in happily.

Fish Compatibility

When it comes to caring for freshwater fish, you will need to choose the types of fish you will place together in one fish tank in order to ensure they can live happily together in the same environment. Although freshwater fish all live in the same bodies of water out in nature, when it comes to caring for them in small tanks or home aquariums, it is vital that you find compatible types of fish to live together so that they can be comfortable and healthy. Make sure you also do not end up overfilling your fish tank with numerous types of fish so that they live a balanced life.

Reducing Fish Stress

Freshwater fish are very sensitive beings that need certain conditions in order to feel comfortable and thrive for a long time. In order to reduce fish stress and ensure they are living happily in the aquarium you set up for them, it is important that you add certain elements like hiding spots and artificial plants to make the fish feel at home. The main point of adding such elements is to make your fish feel accommodated away from their natural habitat and live a long and healthy life.

Caring for freshwater fish in your home or office adds a lot of liveliness and fun to the place. Before you invest in an aquarium and bring in freshwater fish, make sure you do some research to ensure you know all there is to know about your new pets and how you can properly care for them. Remember to invest in all the necessary elements that come with the fish tank so that you can make the fish feel like they would in their natural habitat.

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  1. Joanne August 11, 2022 at 8:53 pm

    I have recently bought a 21 ltr fish tank for tropical fish. I set it up 2 days prior to buying my fish adding Tap Water Safe solution to it. I was told by PetsAt Home that I was only allowed small tropical fish for this size of tank. I’ve noticed that some of my fish are showing signs of stress….. swimming up and down one side of the tank and a couple of others are hiding behind plants. I was wondering if you can give me some advice as I would like to have Happy stress free fish and I’m concerned about their well-being.
    I would also like to know if there is anyone that could come round and see them and help.
    Thank you

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