Family Fish Breed Guide
Compare 14 aquarium fish with sourced references: FishBase maximum length, temperature and pH for every species, plus PetMD lifespan and tank size.
Data last maintained
Family Fish Breed Guide
Compare 14 aquarium fish with sourced references: FishBase maximum length, temperature and pH for every species, plus PetMD lifespan and tank size.
Data last maintained
These are species-level ranges from the sources, not guarantees for an individual fish or a substitute for cycling and testing your own tank. Confirm separately according to your setup.
14 fish breeds
Betta (Siamese fighting fish)
Size · Medium (max length up to 15 cm)
Enrichment & routine
Fancy Goldfish (Ryukin/Oranda)
Size · Large (max length over 15 cm)
Enrichment & routine
Guppy
Size · Medium (max length up to 15 cm)
Enrichment & routine
Neon Tetra
Size · Small (max length up to 5 cm)
Enrichment & routine
Angelfish
Size · Medium (max length up to 15 cm)
Enrichment & routine
Oscar
Size · Large (max length over 15 cm)
Enrichment & routine
Platy (Xiphophorus maculatus)
Size · Medium (max length up to 15 cm)
Enrichment & routine
Molly (Poecilia sphenops/latipinna)
Size · Medium (max length up to 15 cm)
Enrichment & routine
Zebra Danio (Zebrafish)
Size · Small (max length up to 5 cm)
Enrichment & routine
Corydoras Catfish
Size · Medium (max length up to 15 cm)
Enrichment & routine
Bristlenose Pleco (Ancistrus)
Size · Medium (max length up to 15 cm)
Enrichment & routine
Pearl Gourami
Size · Medium (max length up to 15 cm)
Enrichment & routine
Cherry Barb
Size · Small (max length up to 5 cm)
Enrichment & routine
White Cloud Mountain Minnow
Size · Small (max length up to 5 cm)
Enrichment & routine
About the aquarium fish comparison table
Compare species ranges and tank needs
Every species has a FishBase maximum length and, for all but one, FishBase temperature and pH ranges. Species with a PetMD care sheet also show lifespan, minimum habitat and keeping temperature. Use these facts to identify what to confirm before adding a fish, not as a compatibility guarantee.
Search species and water needs
Search species names and water references. The size filter follows the FishBase maximum length, which is the largest recorded specimen rather than the usual aquarium size. There are no energy or shedding filters because the sources do not score those for fish.
Reference only, not a stocking decision
This guide is not veterinary advice, a compatibility guarantee, or a substitute for cycling and testing your own aquarium. Confirm tank mates, water parameters and local rules before adding a fish.
FAQ
Common questions and answers about this topic.
What is Family Fish Breed Guide?
A sourced reference for 14 common aquarium fish with FishBase maximum length, temperature and pH ranges for every species and PetMD lifespan, minimum habitat and keeping temperature where a care sheet exists, each with review dates. It does not guarantee compatibility or replace testing your own tank.
Is Family Fish Breed Guide free to use?
Yes, Family Fish Breed Guide is completely free to use.
Data Sources
This tool's data is compiled from the authoritative sources below.
Data last maintained