Just some Walstad method tanks
This emersed C. wendtii bronze started to make leaves with veins having a light color. They are placed on indirect sunlight.
b. Leaves light green, veins lighter in color than adjoining interveinal areas. Leaves over entire plant may become yellowish green, roots and stems are small in diameter and are hard and woody. Young leaves may appear to be uniformly yellow. Some necrotic spots... sulfur deficiency