Corkscrew Vallisneria Aquarium Care, Lighting Requirements and Growth Information
Vallisneria americana, also called Corkscrew Val, is a wide blade, grass-like plant, in which the leaves will twist, giving them the appearance of a corkscrew. Corkscrew Val is grass green in color and can be a slow to fast grower, depending on nutrient and lighting conditions as well as CO2 supplementation.
Plant the Corkscrew Val in bunches or singly in the mid-ground of the aquarium for the best effect, but be careful not to bury the crown (where the plant stem meets the roots) in substrate as it will kill them. If noticeable decay occurs on the leaves (it usually starts at the tips), it should be trimmed to prevent it from spreading to the rest of the plant, which can cause the entire plant to "melt". For optimal growth, Corkscrew Val requires a moderate level of light at 2 to 3 watts per gallon with full spectrum (5000-7000K) bulbs. Corkscrew Val will thrive with regular CO2 supplementation, plenty of light, and a nutrient rich substrate.
Corkscrew Val will send out runners for propagation. Allow the new plant to develop a root system and leaves before separating it from the mother plant with very sharp, sterilized scissors.