Hygrophila difformis from Asia is beautiful and undemanding - also known as Water wisteria.
Stems become 20-30 cm tall and 6-12 cm wide. A plant for beginners which can help create a balance in the aquarium from the start. Its rapid growth helps prevent algae because the plant absorbs a great number of nutrients from the water especially ammonia which is algae's number 1 food source. The shortage of micronutrients leads to pale leaves, which may be an indication that the aquarium needs more fertiliser such as Neutro T.
In large aquariums its lobed leaves can create a distinctive group so looks best in groups.
This plant has been grown underwater and as a result, has little if any root development and may contain snails or other invertebrates.