01 / Space & growth
Consider adult size, swimming behaviour and the space your pond provides over the long term.
All fish categories
Fish Category / Ballina · Northern Rivers
Koi
Discover koi suited for ponds and outdoor systems, available locally at Aquarium Zone Ballina.
Explore Koi.
1 profile to browse
Get to know the names, compare species and open each profile for a closer look. Use the information to plan your pond, then check current availability with us.
Choose with the whole setup in mind
Right for you.
Right for your
pond.
02 / Compatibility
Check temperament, water conditions and the needs of your existing livestock before choosing an addition.
03 / Local guidance
Bring your pond dimensions, current livestock list and setup photos for advice on suitability.
Fish category / Ballina
Common
questions.
Quick answers about koi. No question is silly, so if yours isn't here, ask us.
How big a pond do koi need?
Koi grow large, so they need a big, deep pond with strong filtration. Tell us about your pond and we’ll help you work out whether koi will suit it.
Can koi live with goldfish?
Yes. Koi and pond goldfish are often kept together, as long as the pond is big enough and well filtered for the number of fish.
Can you help with pond filtration?
Yes. We install and maintain pond filtration and pumps using premium branded products backed by warranty, and offer weekly, fortnightly or monthly pond maintenance across the Northern Rivers.
Can I check what’s in stock before I visit?
Yes. Fresh stock arrives every week and fish can sell quickly, so a listing here doesn’t guarantee a fish is in store today. Call (02) 6686 0002 or send an enquiry and we’ll let you know what’s currently available.
Aquarium Zone / Northern Rivers
Local advice.
Better
decisions.
Explore koi with Aquarium Zone in Ballina. Whether you’re comparing species or planning your next pond, we can help you consider the options for your setup.
For hobbyists in Ballina, Byron Bay, Lismore, Lennox Head and the wider Northern Rivers, a conversation about your pond plans is a useful place to start.
Visit Aquarium Zone / Ballina
See them
in person.
Looking for koi? Contact us to confirm current stock before travelling and get help choosing fish that suit your pond plans.