Australia's Ultimate Tropical Fish & Aquarium Resource
Learn, Calculate, Plan and Build Better Aquariums.
Featured Aquarium Tools
Fifteen free, instant calculators to plan and maintain a healthy aquarium.
Aquarium Volume Calculator
Calculate the exact volume of your tank in litres and gallons from its dimensions.
SetupFish Stocking Calculator
Estimate a safe stocking level for your tank to avoid overcrowding.
StockingWater Change Calculator
Work out how many litres to change to hit your target percentage.
MaintenanceAquarium Heater Calculator
Find the right heater wattage for your tank size and room temperature.
EquipmentFilter Flow Rate Calculator
Check whether your filter turns over the tank enough times per hour.
EquipmentAquarium Lighting Calculator
Estimate lighting needs for low, medium or high-tech planted tanks.
PlantsFish Species Directory
Care guides across 14 categories — from bettas to marine fish.
Betta (Siamese Fighting Fish)
Betta splendens
The iconic Siamese fighting fish: stunning colour, big personality and easy care in a heated nano tank.
Neon Tetra
Paracheirodon innesi
A dazzling blue-and-red schooling fish that defines the classic planted community aquarium.
Harlequin Rasbora
Trigonostigma heteromorpha
A hardy, copper-coloured schooling fish that is a staple of the planted nature aquarium.
German Blue Ram
Mikrogeophagus ramirezi
A jewel-like dwarf cichlid prized for its electric-blue spangling and peaceful temperament.
Fancy Goldfish
Carassius auratus
A hardy, long-lived cold-water classic that needs far more space and filtration than most people expect.
Guppy
Poecilia reticulata
The endlessly colourful livebearer that breeds readily and is perfect for first-time fishkeepers.
Aquarium Setup & Aquascaping Guides
Beginner Aquascaping Guide
Learn the core principles of aquascaping and how to design your first planted tank.
Nature Aquarium Guide (Takashi Amano Style)
The philosophy and techniques behind the Nature Aquarium style pioneered by Takashi Amano.
Dutch Style Aquarium Guide
How to create the colourful, terraced plant displays of the classic Dutch aquascaping style.
Iwagumi Aquascaping Guide
Master the minimalist, rock-focused Iwagumi style and its strict compositional rules.
Latest Blog Posts
Best Tropical Fish for Beginners in Australia
The ten hardiest, most rewarding tropical fish for first-time Australian fishkeepers, with care notes and tank sizes.
How to Cycle a Fish Tank: The Complete Guide
A step-by-step guide to the nitrogen cycle and how to cycle a new aquarium safely before adding fish.
Aquarium Water Testing Guide for Australian Fishkeepers
What to test, how often, and how to interpret ammonia, nitrite, nitrate, pH, GH and KH readings.
Best Aquarium Plants for Beginners
Eight hardy, low-light aquarium plants that thrive without CO2 and forgive beginner mistakes.
Fish Disease Guides
The most common aquarium parasite, appearing as grains of salt across the… 🩺 Fin Rot
A bacterial infection that frays and erodes the fins, usually triggered by… 🩺 Velvet
A parasitic infection that coats fish in a fine gold or rust-coloured… 🩺 Dropsy
A symptom, not a single disease — fluid build-up causing a swollen…
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