For most people, the interest for aquariums as a hobby begins with a starter set. Unfortunately, it often ends here, if the set doesn't work properly!
The amount of light of 0.2 Watt/Litre limits the selection of plants; however, it is possible. Read more the various needs of aquarium plants here.
Microsorum, Anubias and Cryptocorynes are some of the most low-light plants and they are very suitable for this aquarium. Due to their slow growth, they only require minimum care.
Hygrophila polysperma is also suitable, if it is allowed to grow all the way to the water surface, and is carefully cut back.
Echinodorus bleheri grows slowly but in a reliable manner and has to be cut, in order not to shade other plants.