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Fish Tank Accessories & Supplies

Fish Tank Supplies For The Perfect Aquatic Environment

At Petbarn, we understand that maintaining the perfect aquatic environment for your fish requires quality accessories. Our extensive collection includes everything you need to create a healthy, thriving tank. From filter media to gravel and decor, heaters, pumps, filter cartridges, and canister filters, you'll find everything you need to keep your fish tank in top condition.

Filter Media Ranges

Explore our filter media options for efficient water filtration, ensuring your tank remains crystal clear and your fish stay healthy. Looking for the right gravel or décor? Browse our range of beautiful silk tank decorations and substrates. Plus, check out our selection of pumps to keep the water flowing, heaters to maintain a stable temperature, and thermometers to ensure your water is always at the perfect temperature.

No matter your aquarium setup, we’ve got the tools to make your fish tank maintenance simple and effective.

FAQ: Fish Tank Accessories & Supplies

What fish tank accessories do I need for a beginner aquarium?

The exact equipment and accessories you'll need depends on if you're setting up a tank for cold freshwater fish, tropical freshwater fish, or marine fish.

All set ups require some fundamental essentials: a suitably sized tank, an appropriately sized filter, substrate (gravel or sand), a thermometer, décor or live plants, water conditioner, a fish net and a gravel vacuum. These essentials will help establish and maintain a healthy environment as your aquarium cycles.

How do I choose the right filter for my fish tank?

Filter selection depends on your tank set up. Hang-on-back filters are user-friendly, canister filters offer high capacity and media customisation for larger tanks, and internal filters suit smaller aquaria.

Which aquarium starter kits are best value in Australia?

Petbarn carries starter kits from trusted brands ranging from small, 20L perfect for beginners starting with a few fish to larger tanks on stands for ambitious beginners looking to start a serious hobby. These kits come with most of the essential supplies you need to get your aquarium started.

What heater wattage do I need per litre of tank water?

As a general guide, when selecting a heater you need 1 Watt per litre. For example, a 100 L tank typically requires a 100 W heater to maintain consistent temperatures. Always have an aquarium thermometer in your tank so you can monitor the temperature. Explore our range of aquarium heaters.

Where can I buy fish tank accessories near me?

Visit any Petbarn store across Australia or explore our fish supplies online and order for delivery or Click and Collect.

How often should I clean my aquarium gravel and decorations?

Perform a partial water change (no more than 25% of the tank volume) and clean the substrate with a gravel vacuum every 2–4 weeks to remove detritus. Wipe ornaments down with an algae sponge while you’re performing this change. Use water from your tank to clean these ornaments, not unconditioned tap water.

What’s the best way to remove algae from aquarium glass?

Use a magnetic algae scraper or dedicated algae pad for regular algae maintenance. For stubborn spots, a razor blade scraper (glass tanks only) or specialised scraper tools work well. Shop aquarium and fish tank cleaning supplies.

How do I choose between canister and hang-on filters?

Hang-on-back filters are easy to install and maintain, ideal for beginners or smaller tanks. Canister filters provide higher flow rates, larger media capacity and greater customisation—perfect for larger aquariums.