It requires a nutrient-rich substrate with fertilizer added regularly. Provide a moderate amount of lighting of at least 2 to 3 watts per gallon of full spectrum (5000-7000K) light.
For Hygrophila Angustifolia to thrive, the water should be kept between 74°-82°F, with an alkalinity of 3 to 8 dKH and a pH of 6.5-7.5. To propagate, plant cuttings that have been removed from the healthy mature plant. Simply remove any leaves from the bottom 1" to 2" of the stem, and new root growth will form from the last node on the stem.
*Note, plants may arrive looking slightly different to the photo, this is because some plants are grown immersed (out of water). Rest assured, it converts to its under water form quickly and easily.