Hemianthus micranthemoides, also known as Baby Tears or Pearl grass is a nice plant that works well as a foreground plant for large aquariums or mid ground plant for small aquariums. In strong light, this plant will grow close to the substrate creating a great foreground plant. In moderate light, this plant will grow up towards the light creating a taller mid-ground plant
Hemianthus glomeratus is a delicate stem plant from Florida. In the hobby, it has long been known under the erroneous name H. micranthemoides (or Micranthemum micranthemoides). It was recently identified correctly in the USA. With its small, light green curved leaves it is nice for beautiful dense group plantings. Under intensive light it tends to develop a creeping growth habit and thus can be used as foreground plant for strongly-lit tanks. However, it is better-suited for bushy groups in the middle ground of larger tanks or for the background of nano aquaria. Under strong light it can also be cultivated emerged, given that the substrate is kept moist. Then you’ll get a dense mat with very small leaves.