Cryptocoryne x willisii

This Cryptocoryne from Sri Lanka used (mistakenly) to be called Cryptocoryne nevillii, but this is the name of a species that has never been used in aquariums. Like many other Cryptocorynes, not much happens the first month after planting. But then it starts to grow, and willingly produces plenty of runners which form a compact group. The plant becomes 7-20 cm tall, and each roset 7-15 cm wide. 

 

Plant info

Type: Rosulate
Origin:Asia
Country or continent where a plant is the most common. Cultivars arise or are bred in cultivation.
Growth rate:Slow
Growth rate of the plant compared to other aquatic plants.
Height:10 - 20+
Average height (cm) of the plant after two months in the tank.
Light demand:Low
The average or medium light demand of an aquarium plant is 0,5 W/L.
CO2 :Low
A medium need in CO2 is 6-14 mg/L. A high demand in CO2 is approx. 15-25 mg/L.