Microworm Culture for Use in Freshwater Ornamental Aquaculture

Microscopic image of adult microworms on a 1 mm grid. Under the microscope, their white, unsegmented, elongated bodies can be easily seen in constant motion.
A small nematode worm commonly referred to as a “microworm” has been a staple live feed used in the ornamental aquaculture industry for over 50 years. These worms are small enough to be ingested by the larvae of many commonly cultured ornamental species, and their production methods are simple and reliable. Microworms have the potential to provide appropriate nutrition in a live feed organism that is cultured entirely in-house and involves less labor and cost than newly hatched Artemia. In this 4-page fact sheet published by the UF/IFAS School of Forest Resources and Conservation, Program in Fisheries and Aquatic Sciences, authors Shane W. Ramee, Taylor N. Lipscomb, and Matthew A. DiMaggio discuss the biology, environmental requirements, and culture techniques for microworms and explain their importance for the larval culture of freshwater fish species.