Freshwater
Diminutive rotala
Rotala mexicana
Lythraceae
Rotala mexicana
Lythraceae
Lives wild in Angola, Argentina, Australia, Bangladesh, Benin, Bolivia, Brazil, Burkina Faso, and 46 more countries.
Soft, acidic water, subdued light, sand, roots and fallen leaves: how to set up a biotope aquarium from the Amazon and the rivers around it.
Hard, alkaline water, sand and rock: an aquarium from the rivers and lakes of Mexico and Central America, with cichlids and livebearers.
Two completely different aquariums: forest rivers with soft, brown water, roots and leaves, and Rift Valley lake cichlids in hard, alkaline water with big rock piles.
Two aquariums from Southeast Asia: calm forest streams and peat swamps with soft, brown water, and fast mountain streams with cool, oxygen-rich water.