Search Species
Search for fish species by common or scientific name, or use filters to browse by water type, size, temperament, and difficulty.
Enter a search term or use the filters above to find species.
Popular searches
Not sure where to start? Try one of these common searches.
Peaceful community fish
Calm, easy-going species that share a tank without trouble. Great for mixed setups.
Hardy beginner species
Forgiving fish that tolerate a range of water conditions. Ideal for your first aquarium.
Nano tank species
Small fish suited to compact tanks of 40 litres or less. Big personality, small footprint.
Freshwater tropical fish
The most popular category in the hobby. Huge variety of colours, shapes, and behaviours.
Marine reef fish
Saltwater species for reef and fish-only marine tanks. Vibrant and endlessly fascinating.
Large show fish
Statement species for bigger aquariums. Cichlids, catfish, and other eye-catching fish.
How to find the right fish
Choosing the right fish for your aquarium depends on several factors. Our search filters help you narrow down species that will thrive in your setup and match your experience level. Here is what each filter means and why it matters.
- Water type
- The most fundamental choice. Freshwater species make up the majority of aquarium fish and are generally easier to keep. Marine (saltwater) fish are often more colourful but require more specialized equipment and water chemistry management. Brackish species live in the middle ground - water that is part fresh, part salt - and are less common in the hobby but rewarding for those who enjoy something different.
- Size
- Adult size determines the minimum tank you will need. Small species (under 5 cm) can do well in nano tanks of 20-40 litres, while medium fish (5-15 cm) typically need at least 80-150 litres. Large species (over 15 cm) require substantial tanks of 200 litres or more. Always plan for the full adult size, not the size at purchase.
- Temperament
- Temperament affects which species can share a tank safely. Peaceful fish mix well with other calm species and are ideal for community aquariums. Semi-aggressive fish may chase or nip slower tankmates but often coexist with fish of similar size and speed. Aggressive species usually need to be kept alone or with carefully chosen companions.
- Difficulty
- This reflects how forgiving a species is of common mistakes. Beginner fish tolerate a wider range of water conditions and bounce back from minor issues. Intermediate species need more consistent water quality or have specific dietary needs. Advanced fish may require precise water parameters, live food, or breeding setups to keep them healthy.
- Minimum tank size
- Use this filter if you already have a tank and want to see which species fit. It filters based on the minimum recommended volume for a single specimen or a small group. Keep in mind that stocking multiple species means you will need more space than the minimum for any one of them.