Breed & Species Directory Guide

1. What it is and what it covers

A fish breed and species directory is a reference tool for identifying ornamental fish and comparing their care requirements.

2. Key facts and specifications

Useful fields include scientific/common name, adult size, temperature, water chemistry, diet, social behaviour, habitat and aquarium suitability.

3. Practical guidance

Use the directory before buying so the tank can be prepared for the fish rather than the fish being forced into an unsuitable tank.

4. Suitability, choices and limitations

Common names can refer to different fish, and varieties can have different care needs. Verify the exact species with a reputable retailer or authoritative source.

5. UK-specific considerations

UK sellers must provide appropriate welfare information and temperature ranges for fish categories.

6. Safety, risks and cautions

Do not assume two similarly named fish have identical needs.

7. Current sources and research

Current RSPCA guidance was used for aquarium environment, water quality, fish health, feeding and compatibility. Current GOV.UK ornamental-fish licensing guidance was used for UK terminology and welfare requirements for tropical freshwater and tropical marine fish.