Saltwater hobbyists who want the look of plants in their tank usually turn to members of this Order. They require additions of iodine, iron, calcium, and a few other trace elements. Frequent water changes are usually sufficient to provide adequate trace elements for their needs. Light is also a major requirement. They utilize a lot of the blue spectrum, but also require a few other wavelengths.
Flourescent lighting is usually sufficient.
Members of this order can be found in many beautiful forms. Another representative of the Caulerpales is the Genus Halimeda . Halimeda is a little different in its water chemistry requirements than most macro algas. It requires a lot of calcium additions. It is an extreemly calcarious alga.