RGcomplete is a super-concentrated microalgal-based premium quality feed and enrichment for rotifers and other filter-feeding invertebrates. It has been sized especially for Breeders, Aquarists, and Propagators and includes both a pH buffer and ClorAm-X® (ammonia neutralizer). It has a long refrigerated shelf life of at least 6 months.

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For more information about working with rotifers, see our rotifer support pages.

  • refrigerated, not frozen
  • Includes ClorAm-X (ammonia control and a pH buffer
  • Clean, high yield rotifer feed
  • Maximizes levels of DHA, EPA and ARA
  • Stand-alone feed or in combination with one of our enrichment products
  • Suitable for a wide range of zooplankton
  • Fully intact cells
  • Cell size range 1.5 - 12 µm


  • Refrigerate (33-42°F / 1-5°C)
  • Do not dilute for storage

Best Before Date (Shelf Life)

  • 6 months

Rotifer Culture Directions (100 - 250 rotifers per mL)

  • Feed enough to keep culture water light green
  • Feed twice or more a day
  • For maximum productivity, do not let water go clear

Advanced Directions

Feed 11 ml per day per 1 million rotifers to be harvested. For example: Population of 5 million to be harvested at 20% per day, or population of 2.5 million to be harvested at 40% per day, etc.

Maximum production requires higher density cultures, which require more frequent feedings. For best results feed at least every 3 hours using a pump and timer.

Guaranteed analysis:

Crude Protein (min)2.7%
Crude Fat (min)0.9%
Crude Fiber (max)0.2%
Moisture (max)89.0%

Additional Guarantees:

Microalgal biomass (min)4.4%
Total Hufas (min)64 mg/g d.w. (biomass)
ARA (min)2.1 mg/g d.w. (biomass)
EPA (min)18.1 mg/g d.w. (biomass)
DHA (min)41.9 mg/g d.w. (biomass)


  • Seawater
  • Sodium Bicarbonate
  • Sodium Hydroxymethanesulfonate
  • Marine Microalgae
  • Citric acid
  • Ascorbic Acid
  • Larixinic Acid
  • Sodium Alginate

UPC list:

RGC 6 oz:817656016558
RGC 16 oz:817656016565
RGC 32 oz:817656016572