Fresh Frozen Rotifers

Fresh Frozen Rotifers, Brachionus sp., are the perfect minute diet for filter-feeding invertebrates including Corals. Also the perfect food item for very tiny or larval fish.

Fresh frozen ROTIFERS, Brachionus sp., are the perfect minute diet for filter-feeding invertebrates including CORALS. They are also the perfect food item for very tiny or LARVAL FISH.

Rotifers are tiny zooplankton critters that range in size from about 80 ug to 250 ug – basically one-fourth of one millimeter at maximum size.  They occur naturally in freshwater or marine environments such as ponds, lakes rivers, estuaries, and oceans.

Rotifers are extremely valuable in freshwater and marine aquaculture because of their small size which makes them a perfect live food for newly hatched larval fish when they are in search of a tiny “first food”.  The rotifers, especially when “gut-loaded” with phytoplankton, supply the energy and nourishment needed to start the growth and development of the larval fish in this early and critical stage of life. Rotifers are easy to culture in large numbers and thus provide a very important food source in the commercial aquaculture industry.

In a marine aquarium, these tiny zooplankton animals also provide an excellent food for CORALS and other filter-feeding invertebrates.  Acropora corals, Zoanthids, Goniopora and Dendronephthya for example, can reach out with extended polyps and grab the rotifers as they nonchalantly swim within range of the tenacious tentacles.  Rotifers are even small enough to provide food to certain sponges, bi-valves, tunicates, and feather-duster worms which normally “filter-feed” on even smaller organisms such as single-cell phytoplankton, dinoflagellates, and a myriad of very tiny zooplankton larvae.

With vast square miles of outdoor pond aquaculture in China and other countries of Southeast Asia, Rotifers often occur naturally during the cycling of ponds.   After the ponds are harvested, drained, and then re-filled with nutrient-rich water, microalgae, aka phytoplankton, will “bloom” into a large population within the ponds.  They will often turn the water green, brown, or red when the bloom is at its peak. The ROTIFERS, in turn, will then start their own bloom, feeding on the phytoplankton and reproducing into millions, trillions and Godzillions of tiny nutritious little animals, now ready for harvesting as a live food source.

Northern coastal China is one of the few areas in the World where Rotifers can be grown in such large numbers as to be suitable to harvest, drain, rinse and package into small cube trays or plastic bags and then FROZEN for future use.  The vast quantities of the individual animals needed to produce enough volume to fill a single one-kilogram package are mind-boggling. The sheer volume required to supply the relatively small aquarium industry un-fathomable. As aquarists, we are very fortunate to have this product….which is basically no more than a natural by-product of the farming of fish and shrimp in ponds which are grown to provide food for humans throughout the world.

V2O FOODS ROTIFERS are available in 100g, 200g blister cube trays.

Ingredients & Analysis:

Fresh Frozen Rotifers, Brachionus sp., drained of excess water, Potassium ascorbate (source of Stabilized vitamin C)
Protein (Min.); 4.0%, Lipids (Min.); 1.0%, Fiber (Max.); 0.7%, Moisture (Max.); 91.3%, Total Omega3 Fatty Acids; 0.4%