Atlarium
Atlas
Guides
SOS
More: Tools, Community
Atlas
Guides
SOS
Tools
More: Community
Species Atlas
Guides
SOS Aquarium
Tools
Community
EN
Sign in

Encyclopaedia

Freshwater fish

✓Plant atlas✓Freshwater fish✓Brackish fish✓Marine fish✓Freshwater invertebrates✓Brackish invertebrates✓Marine invertebrates✓Amphibian atlas✓Reptile atlas✓Terrestrial Invertebrate atlas✓Microlife atlas

Freshwater species for community aquariums, river biotopes, and planted tanks.

Copy the link or share this page so you can easily find it again.

Tank position and role

Choose the main zone or behavior, then open the filtered list.

Categories
918SurfaceSpecies that use the upper tank and water surface.678MidwaterVisible mid-column fish for movement and color.796BottomSubstrate, cave, and lower-tank inhabitants.641SchoolSpecies kept in higher numbers for natural movement.89GroupSpecies managed in small compatible groups.54Pair / trio / haremFish with tighter social pairing or group ratios.449Solo / centerpieceSpecies used as a main presence or single focus.107Nano tankSmall fish for compact tanks and lighter stocking.
Atlarium

Crafted with care for discerning aquarists.

Atlarium's chameleon mascot offering a coffee cup with a heart

Open source · independent · community-led

Help Atlarium keep growing

Your support keeps the servers running and gives us time to build better tools for every aquarist.

Ko-fiBuy us a coffee

Discover

Species AtlasGuidesSOS AquariumCommunity

Project

MCPAboutContactPressEditorial methodSupport us

Legal

PrivacyTermsCookies and analytics

© 2026 Atlarium. All rights reserved.

A TechGardeners project

Release v0.2.2