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Tropical FishAdding Fish to Your Tank

Choosing the Right Fish

When choosing your fish you need to take account of how they live in their natural habitat, and their natural personalities.

Some fish species are recognised as being peaceful while others are semi-aggressive or aggressive. In addition, some species prefer to live alone, while others are schooling fish which means they prefer to live in larger groups of the same species.

Use our Compatibility Chart to help you choose the right fish to live together happily in your tank.

Adding Fish to Your Tank

To prevent the balance of chemicals in your tank from spiking and causing illness or fatalities in your new fish, it is recommended that you only add a few new fish at a time to your tank. The capacity of your tank will be determined by its size, the type of fish that you want to keep, and the amount of live plants that you may have in your fish tank. Our fish experts are on hand to help determine how many and when you can introduce to your tank.

Acclimatisation Procedures

When introducing new fish to your fish tank, you will need to allow the fish to acclimatise to its new environment slowly. By following these simple steps you will be helping your fish to settle into their new home.

  1. Turn off the lights in your fish tank
  2. Open the bag containing your fish and remove 25% of the water. Pour this water down the drain.
  3. Replace the water removed from the bag with an equal amount of water from that which is in your tank.
  4. Close the bag and place it into the tank so that it floats on top of the water
  5. Every 10 minutes for the next hour, remove a cup full of water from the bag, and replace it with an equal amount of water from the tank.
  6. After an hour, use a fish net to carefully transfer your fish from the bag into your tank. Be careful not to allow the water from the bag enter the tank.
  7. Once the fish have been safely transferred into your tank, dispose of the water in the bag by pouring it down the drain.
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