Rotala Rotundifolia also known as Rotala Indicia in many places is one of the easier colorful plants to grow. This plant will grow in moderate light with no problems but the higher the light, the more colorful this plant will be, see pictures. The color can range from Pink to red, to orange depending on the light intensity and nutrients found in your water column.
You are buying 1 bunch, 8+ stems.
Plant weight included with all bunched plants.
Stem plants are usually cuttings of plants that normally don't come with roots. This is how stem plants are sold in the aquatic plant industry although at times my stem plants may come with roots because I have been growing them out. All stem plants come with a plant weight that holds the plant in place and is safe for your tank.
To plant just let the weight lay on your substrate and the stems will grow roots throughout your substrate. You can also plant the tips, about 1/4" in your substrate if you prefer.
Please go here for more information on planting