Glossostigma elatinoides are native to New Zealand.
It is one of the smallest aquarium plants (2-3 cm tall), and thus making it a good foreground plant or carpet. 
Needs a lot of light to grow well.
Make sure larger plants do not overshadow it.
When planting in the aquarium small clumps (approx. 1/8 pot) should be placed at intervals of a few centimetres to help the plants grow together more quickly.
CO2 addition and soft water promote growth significantly.