What are the opening hours?

Tuesday 10am - 12:30pm 1pm - 6am Wednesday 10am - 12:30pm 1pm - 6am Thursday 12pm - 7pm Friday 10am - 12:30pm 1pm - 6am Saturday 9am - 5pm Sunday 9am - 5pm

ARC Aquariums

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Hornsby, NSW
ARC Aquariums

ARC Aquariums offer an amazing range of Aquarium supplies, friendly service & reliable advice, servicing beginners to the extreme hobbyists.

Come and see our amazing selection of Freshwater and Saltwater. We stock a broad selection of healthy, quality livestock including: Tropicals, Basic and Fancy Goldfish, African & American Cichlids, Discus, Rainbowfish, True Aquatic Plants, Local & Imported Marine Fish from the far corners of the world, along with an amazing array Corals, Invertebrates and Live Rock. To complement our livestock, we

also stock Natural Seawater, RO/DI Water, Live Foods, Frozen Foods Spare Parts, CO2 Systems. Sydney's best Custom made tanks, quality cabinets & reptile enclosures. Come along and experience Arc Aquariums .

10/05/2026

Love waking up to photos like these from our ARC Family 🥵😍

Massive shoutout to Andrew for absolutely smashing his first aquarium build. Only 18 months into the hobby and already creating a planted tank this sexy should honestly be illegal 😮‍💨🌿

This is proof that with a little patience, the right plants, and some solid advice, anyone can create something incredible 😉

Now be honest… what would you rate this setup out of 10? 👀👇 Comment your tanks below and we will rate it‼️

27/04/2026

New Montis just dropped… and yeah, they’re looking dangerously good 👀

We’re talking bright plates, juicy encrusters, and colours that don’t just pop… they show off. Reds, greens, purples, rainbows… the kind that make you “accidentally” rearrange your whole scape just to fit one more in.

If your tank’s been feeling a little… empty… these will fix that real quick 😉

25/04/2026

We will be heading into work this afternoon to check on our livestock .
And will stay open until 4 pm for your convenience .
Pop in and grab yourself a sprig of rosemary as a token of remembrance this Anzac Day .
Lest we forget .

23/04/2026

ANZAC Day Hours

Just a quick heads-up that we’ll be taking this Saturday morning to reflect and pay our respects. We will be opening our doors at 12:00 PM and staying open until 4:00 PM

Come by Saturday afternoon and say hello—we’d love to see you.

Lest we forget. 🇦🇺🇳🇿

17/04/2026

Some amazing Hammers swam there way in-store this week. Varieties include Reverse’s, Toxic’s, Marble’s and even a Holy Grail 🫣

There aren’t many of these tank grown LPS frags so come in quick and sn**ch one up for your tank!

Open all weekend from 9am -5pm

12/04/2026

Home grown frags. Just the way they should be.

There’s something different about a frag that’s been tank grown, settled in, and properly cared for from day one. Healthy, thriving coral ready to take off in your system.

Our latest batch has finished cooking and is now at ARC, ready for you to sneak that extra pop of colour into your tank. Larger tank grown colonies also available if your not as patient 😜

If you’re chasing corals that actually last and grow, home grown is the way to go.

Available now in store 👀

06/04/2026

Clean installs, zero compromise.

This one’s all about what you don’t see. Neat cable management, organised power, and a layout that actually makes maintenance easy. No spaghetti, no guesswork… The CADE S3 with integrated cable management is a dream come true

We don’t just build aquariums, we build setups that are reliable long term. Because when everything is dialled in behind the scenes, your display gets to shine.

If your current setup’s a mess… you already know who to call 😉

04/04/2026

Looks like the Easter Bunny made a pit stop for some aquarium supplies this morning 😜🐰

We’re open today from 9am to 5pm, with plenty happening in store:
FREE Easter Egg Hunt for the kids 🍫
FREE sausage sizzle at 12pm 🌭

Hop into ARC today for a bit of Easter fun 🐣

02/04/2026

Lighting that doesn’t just illuminate your tank… it transforms it.

Matt's just finished setting up his stunning display powered by the legendary Kessil A500X's. Clean shimmer, insane depth, and that signature Tuna Blue that will make coral pop like nothing else.

Whether you’re running an SPS dominant system or planning your dream build, this is the kind of lighting that takes your tank to the next level. And yes… we’ve got plenty in stock 👀

Come chat to the team at ARC Aquariums and see what setup is right for you.

01/04/2026

Another CADE Aquarium making its way into its forever home. The S3 Peninsula is truly state of the art, doubling as a stunning room divider that brings life and movement into any space.

At ARC Aquariums, we are proud to be NSW’s premier dealer for CADE Aquariums. No matter the model, we have you covered with expert advice, premium setup, and ongoing support.

Speak to our team of experts and let’s turn your dream aquarium into a reality.

30/03/2026

🐣 We’re Open All Easter Weekend… no road trip required! 🐣

With fuel prices doing their thing, you don’t need to go far this Easter 😅 we’re right around the corner!

📍312 Peats Ferry Road, just a quick 5 minutes walk from Hornsby Station

We’re open all weekend long and on Sunday we’ve got the whole family sorted:
🍫 FREE Easter Egg Hunt for the kids
🌭 FREE Sausage Sizzle at 12:00
☕ FREE Coffee
🐟 Feed the Koi

Save your fuel, bring the family, and enjoy a great day out with us. See you there!

Address

312 Peats Ferry Road
Hornsby, NSW
2077

Opening Hours

Tuesday	10am - 12:30pm
	1pm - 6am
Wednesday	10am - 12:30pm
	1pm - 6am
Thursday	12pm - 7pm
Friday	10am - 12:30pm
	1pm - 6am
Saturday	9am - 5pm
Sunday	9am - 5pm

Telephone

+61294761001

Website

https://arcaquariums.com.au/

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