Brackish aquariums
The middle ground between fresh and salt.
Mangrove estuaries, tidal pools, and slow-moving coastal rivers. Brackish tanks host some of the hobby's most fascinating fish: mudskippers, figure-8 puffers, archerfish, bumblebee gobies, scats, and mollies all thrive in low-salinity conditions. Coverage is still growing, but the species we've tagged so far are all worth a look.
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The Americas
From the Amazon's blackwater basins to Caribbean reefs — the Americas hold the most popular freshwater biotopes and a wealth of Atlantic and Pacific saltwater life.
10 species
Africa
The Great Rift Lakes drive the African hobby — Malawi and Tanganyika host some of the most diverse cichlid radiations on Earth. West Africa and Madagascar add further biodiversity.
8 species
Asia
The rivers and rice paddies of Southeast and South Asia give us rasboras, barbs, gouramis, danios, loaches, and a whole world of community fish.
27 species
Oceania
Australia and New Guinea host rainbowfish, blue-eyes, gudgeons, and a distinct freshwater fauna separate from the Indo-Pacific reef zone.
9 species
Indo-Pacific
The heart of marine biodiversity — the Coral Triangle, Great Barrier Reef, and surrounding seas hold more reef species than anywhere else on Earth.
1 species