05/09/2026
Our Top 3 Unheated Aquarium Fish!
Who says a great aquarium needs a heater? Some of Australiaโs coolest fish are perfectly happy in an unheated aquarium.
๐ Medaka โ Small, elegant and endlessly charming. These Japanese rice fish are hardy little surface-dwellers with loads of personality and an impressive tolerance for cooler water.
๐ Southern Purple-Spotted Gudgeon โ A true Australian character. Robust, striking and full of attitude, this native gudgeon brings plenty of personality to an unheated setup.
๐ Australian Smelt โ Schooling, active and unmistakably Australian. Keep a group together and watch these little fish transform the aquarium with constant movement and energy.
Three species, three very different personalities, but one thing in common: no heater required.
Which one would you choose for your unheated aquarium? ๐
๐ Shop nowโฌ๏ธ
https://coburgaquarium.com.au
Visit us 10am - 6pm every day
๐232-236 Bell St, Coburg, VIC
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