How to set up a fish tank the right way; important steps to remember
Aradhana Jha | TimesPets Bureau | Jan 30, 2026, 09:16 IST
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It may seem like a simple process to set up a fish tank but doing it the right way is very important. A well-set-up aquarium ensures a stable environment and even prevents problems such as cloudy water, illness, or the death of your fish.
It may seem like a simple process to set up a fish tank but doing it the right way is very important. A well-set-up aquarium ensures a stable environment and even prevents problems such as cloudy water, illness, or the death of your fish. Whether you are a beginner fish owner or someone who has taken a break from fish-keeping, here is a step-by-step guide on how to set up a fish tank correctly. Here’s a look at some important steps that you need to take care of
Select the right tank size
The most common mistake that beginners make is the selection of a tank that is too small. The right size of water tank is one of the most important steps. Small tanks could be easier to handle but they are actually more difficult to maintain since the water conditions change rapidly. For a beginner, a tank of 20-30 liters is the minimum recommended size.
Pick a suitable location
Position the fish tank is another important factor to take care of. Keep the tank on a flat and stable surface that is not exposed to direct sunlight, windows, and heating sources. Direct sunlight can lead to the growth of excessive algae, while temperature changes can cause stress to the fish.
Clean the tank properly
Before assembling the fish tank, it is essential to wash the tank and ensure everything is clean. Soap or detergents should never be used to clean fish tanks because even the slightest amount can be harmful to fish. Thoroughly wash the gravel until the water draining from it is clear to ensure that dust and debris, which could cloud the aquarium, are removed.
Keep a water filter
A filter is a crucial component in maintaining clean water and a healthy amount of bacteria.
If necessary, set up a heater that is appropriate for your tank size, particularly if you have tropical fish. Connect a thermometer to the tank to ensure that the water temperature is measured correctly.
Fill the tank with water
Slowly fill the tank with water from the tap, pouring it gently to prevent disturbing the gravel. After filling the tank with water, add a water conditioner to eliminate chlorine and other toxic substances that are present in tap water. Chlorine will kill beneficial bacteria and fish, making this step mandatory.
Once the tank is cycled, introduce fish gradually never at one time. Begin with a few robust fish and monitor them for a couple of days.
Before introducing fish to the tank, suspend the bag containing the fish in the aquarium for 15 to 20 minutes to allow the temperature of the water to normalize. This will help prevent shock.
Feeding sparingly
One of the reasons for dirty water and sick fish is overfeeding. Feed fish in moderation, once or twice a day, only as much as they can consume in a matter of minutes. Unconsumed food must be removed to prevent water pollution.
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Select the right tank size
The most common mistake that beginners make is the selection of a tank that is too small. The right size of water tank is one of the most important steps. Small tanks could be easier to handle but they are actually more difficult to maintain since the water conditions change rapidly. For a beginner, a tank of 20-30 liters is the minimum recommended size.
Pick a suitable location
Position the fish tank is another important factor to take care of. Keep the tank on a flat and stable surface that is not exposed to direct sunlight, windows, and heating sources. Direct sunlight can lead to the growth of excessive algae, while temperature changes can cause stress to the fish.
Clean the tank properly
Before assembling the fish tank, it is essential to wash the tank and ensure everything is clean. Soap or detergents should never be used to clean fish tanks because even the slightest amount can be harmful to fish. Thoroughly wash the gravel until the water draining from it is clear to ensure that dust and debris, which could cloud the aquarium, are removed.
Keep a water filter
A filter is a crucial component in maintaining clean water and a healthy amount of bacteria.
If necessary, set up a heater that is appropriate for your tank size, particularly if you have tropical fish. Connect a thermometer to the tank to ensure that the water temperature is measured correctly.
Fill the tank with water
Slowly fill the tank with water from the tap, pouring it gently to prevent disturbing the gravel. After filling the tank with water, add a water conditioner to eliminate chlorine and other toxic substances that are present in tap water. Chlorine will kill beneficial bacteria and fish, making this step mandatory.
Once the tank is cycled, introduce fish gradually never at one time. Begin with a few robust fish and monitor them for a couple of days.
Before introducing fish to the tank, suspend the bag containing the fish in the aquarium for 15 to 20 minutes to allow the temperature of the water to normalize. This will help prevent shock.
Feeding sparingly
One of the reasons for dirty water and sick fish is overfeeding. Feed fish in moderation, once or twice a day, only as much as they can consume in a matter of minutes. Unconsumed food must be removed to prevent water pollution.
Celebrate the bond with your pets, explore Health & Nutrition, discover Breeds, master Training Tips, Behavior Decoder, and set out on exciting Travel Tails with Times Pets!