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Beginners Guide

Online Fish Stores in Sydney For Newbies-From Tetra to Cory Catfish.

by Catherine Tran 26 Jul 2023 0 Comments

When you are starting to research to keep aquarists and are looking for a reputable online fish store with all the fish you need for your tank, well no need to research more because you’re in the right place. 

There are so many types of fish to choose from, from freshwater fish, saltwater fish, bettas, guppy, and many more. But don't worry, we'll introduce you to 3 of the biggest online fish stores in the Sydney area. Especially, if you are a beginner, Tetra and Cory catfish are 2 easy fish species that you can start today. 

Big bonus, at the end of this article, we provide more nurturing information about these two fishes. So, don’t skip any information in this article, now let’s move forward!

Micro Aquatic Shop

Blue-King-Cochus-Neon-Tetra-(Boehlkea Fredcochui)2-3cm

If you are looking for Tetra and Cory catfish, Micro Aquatic Shop is the pet fish store place to be. They offer various species such as Columbian Tetra, Cardinal Tetra, Glowlight Tetra, Emperor Tetra, Blue King Cochus Neon, Black Emperor, Lemon, Rummy Nose, Flame Tetra, and many more.

Cory catfish: Pygmy Cory Catfish, Orange Venezuelan Cory Catfish, Corydoras Sterbai, Corydoras Panda, Corydora Peppered Catfish, Gold Laser, Corydora Albino Catfish.


The advantage of this fish store is excellent customer service, you can directly call Andy - a leading expert with more than 8 years of experience in the field of aquarium fish for dedicated advice.

Micro Aquatic Shop is also known for its professional packaging team that ensures your products arrive in perfect condition. In addition, the fish store also offers a variety of shrimp, fish, snails, ornamental plants and decorative driftwood for aquariums.

Visit the fish store at:

Address: Unit 15, 2-8 Daniel Street, Wetherill Park, NSW 2164

Customer Support: (02) 8320 3037




Obsidian Aquatics.


Obsidian Aquatics offers a wide variety of fish, including Tetra and Cory catfish. You can find Cardinal Tetra, Glowlight Tetra, Black Emperor, Flame Tetra, White widow tetra and many more.

The online fish store has many products about Cory and Tetra. However, some products do not have many pictures for reference and lack a detailed description of behaviour and specifications.

Visit the fish store at:


Fish World Aquarium.


Fish World Aquarium is another pet fish store offering a wide range of Tetra and Cory catfish. Here you can find Black Neon, Black Widow Tetra, Cardinal Tetra, Glolite Tetra, Neon Tetra, Rummynose Tetra and many more.

However, some of the shortcomings of the fish pet store are the failure to note whether the product is in stock or out of stock. This requires customers to call the store or shop in person to check.

If you are interested in two species of fish Tetra and Cory catfish, the information below is for you.

Visit the fish store at:


164 Cheltenham Road

Dandenong, Victoria, 3175

Call Us: 03 9794 0263

Email Us:

Quick Facts about Cardinal Tetras.


Care Level: Easy

Temperature: 25°C–32°C

Tempament: Semi-aggressive

Colour Form: Red and blue

Lifespan: 2–5 years

Size: 2 inches

Diet: Carnivores

Minimum Tank Size: 20 gallons

Tank Set-Up: Freshwater: heated, planted

Compatibility: Community

Neon Tetra is a popular aquarium fish known for its beauty and peaceful nature. Setting up a tank for them is an easy task, even for beginners. Here's a guide to help you get started.

Determine the Number of Fish: Decide how many Neon Tetras you want to keep in your tank.

Choose the Right Tank Size: For a group of 6-10 Neon Tetras, a 10-gallon tank is ideal. You can adjust the tank size based on the number of fish you plan to keep.

Maintain Water Parameters: Neon Tetras prefer soft water and a temperature between 72-78 degrees Fahrenheit. It's crucial to mimic their natural habitat by checking and balancing water parameters regularly.

Provide Adequate Substrates: Neon Tetras don't need elaborate decorations, but adding dense plantations and some hiding spots will make them feel at home.

Proper Tank Filtration: Use an appropriate filter based on the tank size to keep the water clean and free from harmful substances.

Consider Lighting and Heating: Neon Tetras prefer dim lighting, and a timer can help maintain their routine. Use a heater to regulate water temperature, especially during winter.

Choose Compatible Tankmates: Opt for peaceful and compatible tankmates that won't stress out the Neon Tetras.

Balanced Diet: Neon Tetras are omnivores, so provide a varied diet including plant-based and live foods.

Prevent Diseases: Regularly observe your Neon Tetras for any changes in behaviour or health. Maintain a healthy environment to minimize stress and prevent diseases.

Quick Facts About Cory Catfish.


Care Level: Beginner/easy

Temperature: 74°F to 80°F

Temperament: Peaceful

Colour Form: Peppered, albino, Julii, pinkish-white, green, black, and orange.

Lifespan: 3 to 7 years

Size: 2 to 4 inches

Diet: Omnivore

Minimum Tank Size: 30 gallons

Tank Set-Up: Planted, natural

Compatibility: Excellent with other peaceful fish

Cory catfish are a popular choice among aquarium enthusiasts, known for their peaceful nature and efficient bottom-cleaning abilities. There are over 100 species of Corydoras, with the Albino Cory being one of the earliest to be introduced into the aquarium trade.

These freshwater fish originated from South America, specifically the Andes Mountains and Atlantic Coast, and can be found from Trinidad to Argentina. Due to their versatility and adaptability, they have gained popularity among aquarists of all levels.


Cory catfish are well-suited for smaller home aquariums as they stay relatively small. They thrive in a natural environment with sand, live plants, and rocks, similar to their native habitat in shallow and slow-moving streams. Being social creatures, they prefer to be kept in groups of three or more, and they shoal naturally.

While Cory catfish are relatively easy to care for, breeding them can be challenging. Their peaceful temperament makes them great additions to community tanks with other peaceful fish, but they should not be housed with aggressive species. Their diet should consist of sinking foods like shrimp and algae pellets, along with nutritious plants and protein-based foods.

Maintaining a stable and suitable environment is crucial for the health of Cory catfish. They require a tank of at least 30 to 40 gallons, with a stable temperature between 74°F to 80°F and a pH level of 5.5 to 7.0. Soft substrates like aquarium sand are preferred to protect their delicate underbodies. Regular water changes and a good filtration system with slow water flow are essential for their well-being.

Breeding Cory catfish can be challenging, as they require specific environmental conditions similar to their natural habitat. Inducing spawning can be done by simulating a rainstorm with temperature drops or changes in water pressure.




In summary, you have more than 3 choices when buying Tetra and Cory Catfish at other fish stores. But if you are in Melbourne and are a newbie, then Micro Aquatic Shop is the “online fish store in Melbourne” that you cannot ignore.

We have another article about the biggest aquarium shops in Australia, you can check it out here: 

From Novice To Expert: Your Guide To Melbourne's Biggest Aquarium Shops

From aquatic, aquarium shrimp fish, and aquatic plants to decorative items, they have everything you need. Not only diverse in products but also committed to providing detailed information, and clear images for you to make a smart choice.

Hopefully, this article has given you a new perspective on aquatic life and you will make the right decision when adding fish, shrimp, snails and special aquatic plants Tetra and Cory Catfish to your community tank.

Let's start simple - grow fast to aquarist and don't worry, we got your back!

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