Brilliant rasbora
Bucktooth tetra
Cardinal tetra
Celestial pearl danioTank setup guidance
Freshwater Fish
Freshwater Fish Profiles, Care Guides, and Tank Decisions
Choose freshwater fish by adult needs, not shop labels.
Use this freshwater fish guide to compare species by adult size, social structure, water context, diet, and the aquarium each fish actually needs.
Featured guideBetta fishOpen guide
More species
Keep exploring the collection
Community aquariums
Choose fish by adult size, social needs, and water
A shared tank works only when each species can feed, rest, and hold space without persistent stress.
Water guide
What water conditions do freshwater fish need?
Helpful resources
