Aquarium Care & Education

GH & KH Explained: What Water Hardness Means for Your Fish and Plants
GH and KH are two of the most misunderstood numbers in fishkeeping. Here's what they actually mean, why they matter, and how to find out what's coming out of your own tap. Read more...
Can You Keep These Australian Native Fish Together? A Beginner's Stocking Guide
Gudgeons, blue-eyes and desert gobies are some of the most underrated fish in the hobby — but not all of them get along. Here's what to know before you stock a native tank Read more...
Is Your Sydney Tap Water Safe for Fish? What Every New Aquarium Owner Needs to Know
Sydney tap water isn't just treated with chlorine — it's treated with chloramine, a more stable chemical that won't simply evaporate overnight. Here's what that means for your new tank, and how to make water changes safe every time. Read more...
How to Test Your Water Parameters in a Blackwater (Tannin-Stained) Aquarium
That gorgeous tea-coloured water makes reading a standard liquid test kit surprisingly tricky. Here's how to get accurate readings without giving up the tint. Read more...