Araguaia is a river system in Brazil and it is under this name that the plant has become known. There are many signs, however, that the plant is a Hygrophila lancea from Japan and Hong Kong. The stem becomes 10-20 cm tall and 6-15 cm wide. It has compact, tight-sitting leaves and grows branches easily. Pinching of the stems maintains a bushy look. The plant is reddish brown to purple in colour and is promoted by good growth conditions. The growth rate is average for a Hygrophila

. Aquatic plants from tissue culture offer several benefits. They are free from pesticides and unwanted extraneous organisms such as parasites, pathogens, snails, planarians, insect larvae, algae and annoying "weeds" such as duckweed. The pesky removal of rock wool is omitted completely. And with one portion you get quite a large number of small individual plants.