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.

1,013 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.

401 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.

698 species

Oceania

Australia and New Guinea host rainbowfish, blue-eyes, gudgeons, and a distinct freshwater fauna separate from the Indo-Pacific reef zone.

75 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.

1,073 species

Atlantic & Europe

The cooler side of the reef world, plus European freshwater — temperate species, Mediterranean reefs, and the North Atlantic.

115 species