What are you looking for?


Take advantage of cheap parking rates with your ticket.

Find out more


Check out our frequently asked questions.

Find out more

View Your Photos

Already visited? View your photos.

Find out more

Our Location


SEA LIFE Sydney Aquarium

1-5 Wheat Road, Darling Harbour

Sydney 2000

Get Directions Contact Us

Sink Your Teeth Into Our Newsletter

I'd like to receive updates from Sydney Aquarium and other Merlin attractions.

Open Times

Regular Opening Hours
Open Thursday - Monday 10am - 4pm (Last entry 3pm)
SEA LIFE Sydney Aquarium

Cleaning is a Big Job

15 Nov 2013 11:02:30

Cleaning is a Big Job

We regularly get asked how we keep our tanks so clean and clear. Well it's a big job!

If you have a pet fish at home, you'll know that every couple of weeks you have to empty out half the tank and refill it with treated water and use a magnetic glass cleaner to clean the glass so you can see through it clearly...

As you can imagine it isn't that simple with our tanks especially our oceanariums, and with so many animals we need to keep our tanks in top condition. This means every week our amazing Aquarists get into the tanks and clean the glass from the inside with cloths, brushes and even plastic cards like the ones credit cards are made of.

Oour Innovative Aquarists!

Not only does the glass need cleaning but so does the gravel and sand. To do this we use a Siphon cleaner it's a bit like a vacuum cleaner but under water. The photo on the right is what we use to clean the gravel and sand in our tanks - a great example of the innovative way our Aquarists recycle and reuse items around SEA LIFE Sydney Aquarium!

If you're lucky you'll even spot our Aquarists in the tanks cleaning away! Make sure you take a photo and post it on our Facebook page.

Save on Entry Tickets Now!


Full Price


Per Adult (Child $40)
  • Price includes a Digi Photo pass giving you Unlimited Digital Photos!
  • You are required to book a date & timeslot before your visit
  • Visit your other attraction within 30 days