Hygrophila polysperma, also known as dwarf hygro, Indian waterweed and dwarf hygrophila is one of the hardiest aquarium plants available in the aquarium hobby. It is so resilient and forgiving, that you almost have to set out with the intent to kill it, to really fail with this plant.
Dwarf hygrophilia doesn’t require any special care, and will grow nicely in even the most basic aquarium setup. You can add CO2 to a tank containing dwarf hygro – but it tends to be overkill, and should only be provided if other plants need it. While it doesn’t require CO2, it does benefit from the addition of trace minerals, and these should be added after every water change. I personally use Seachem Flourish Trace Elements, and I have enjoyed great success with it.
Even though it’s already been stated, it’s very important that you prune your dwarf hygro at regular intervals. This not only helps to prevent it from taking over the aquarium, like some sort of malicious underwater Triffid – but it also helps the plant to rejuvenate itself. If you have any plants that are looking spindly or sickly, a good pruning will often trigger renewed growth and improve the plants appearance and health.
*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.