View our store & clinic holiday trading hours | Offer ends Jan 10 | View here

Free delivery over $79 | Click & Collect in 90 minutes | Offer ends Jan 22 | Learn more

Back To Fish
How to keep your fish healthy in winter

How to keep your fish healthy in winter

Fish can become stressed during winter months, leading to health problems. Follow these seven simple tips to help your fish to continue to thrive when the temperature drops.

Avoid drafts

Make sure that your fish tanks are not exposed to cold drafts at night – close doors, use door stoppers and window drapes to assist.


Check temperature

It may sound obvious but take the time to check the temperature of your tank with a thermometer. Make sure the water temperature hasn’t dropped below ideal conditions for your fish.


Check the size of your heater

Use the manufacturer’s recommendations to check that your heater is big enough for your tank, or have a chat to one of our Animates team members.

Check water parameters

Eliminate any other stresses and ensure that your water quality is correct for the fish you keep. Purchase a quality testing kit and test your water regularly. To prevent issues, keep the tank clean and check that your filters are fully operational.

To keep your aquarium environment healthy, you will also need to understand the nitrogen cycle, which is sometimes referred to as "biological filtration." Click here to learn more about the nitrogen cycle.


Avoid large water changes

Filling the tank with cold water can reduce the temperature significantly, leading to stress and disease. Try more frequent, but smaller, water changes instead.


Treat with medication as needed

Fish under temperature stress can commonly suffer from fungal disease or white spot. Keep an eye out for these, and treat with medication as needed.


Feed a nutritious diet

Boost the immune systems of your fish and ensure they are eating a quality diet. Frozen foods can also be a big help in adding vitamins and minerals to the diet. Click here to shop our wide fish food range.


Ask in-store for advice

We also recommend
  1. Setting up your new aquarium animates

    Setting up your new aquarium

    Fish keeping can be a very rewarding hobby. Follow our easy step by step guide below to get started.

  2. 5 fish tank design tips for a captivating aquarium animates

    5 fish tank design tips for a captivating aquarium

    Create an aquarium that both you and your fish will love.
    There’s a bit of an art to creating your aquarium. The first priority is the health and happiness of your fish and, once you have that sorted, you can experiment with the layout and look. Here are some things to keep in mind when creating (or re-creating) your fish tank.

  3. Aquarium Plants Care Guide animates

    Aquarium Plants Care Guide

    Plants not only enhance the beauty of your tank but they also provide a great deal of benefits for your fish. A well planted tank can be a stunning sight.