Cryptocoryne wendtii, Green is probably the most popular crypt in the hobby, due to it's easy requirements. Does well under low light and in hard water, it forms a nice group in the aquarium.

Botanical name Cryptocoryne wendtii green
Light demand moderate
Difficulty easy
Usage Mid-ground, Background
Growth rate medium
pH value 6-9
Temperature 59 - 86°F
Hardness 1 - 18°dKH
Max. Size 4-8"