We love Crypt Parva! Cryptocoryne Parva is considered one of the smallest variations within theCryptocoryne family. This small aquarium plant offers bright green color tones and a low-growing profile that makes it a perfect choice for accents in the foreground of a planted aquarium or as a carpeting aquarium plant, provided patience is present as it is a slow growing Crypt species.Crypt Parva isone of the few species that does not significantly change its leaf shape or color under different conditions. Similar to other species of Crypt, its growth rate is slow and it does not like to be moved so uprooting it once planted is not ideal and should be avoided, if possible. A pressurized CO2 system is not required, but will promote quicker, thicker growth.