Small foreground plants for aquariums are in short supply, but Echinodorus tenellus is one of the best. The runners spread round the aquarium, and growth is more compact when planted in a pot or between stones or other objects. A true ‘lawn’ effect is only achieved at high light intensities, so you must make sure larger plants do not overshadow the plant. Plant individual plants a couple of centimetres apart (easiest with tweezers). A nutritious bottom promotes growth.