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This Item is a refrigerated product and requires 2nd-Day Shipping or faster. Store SELCO in the refrigerator.

The Industry's Benchmark Enrichment Formula

SELCO bottle

Self Emulsified Lipid Concentrate (SELCO) was developed by Artemia Systems in Belgium and has been the benchmark enrichment formula to the aquaculture industry.

This artemia or rotifer enrichment formula is rich in highly unsaturated fatty acids (HUFAs) and is super concentrated. Just 10 drops per liter or quart of water is sufficient for enriching thousands of Artemia nauplii and adults as well as rotifers.

For Best Results...

...follow these simple instructions:

  1. Do not enrich nauplii in their hatching water! Prepare a new cone or culture vessel for the enrichment using fresh seawater. Adjust salinity to 25-30 parts per thousand (ppt), at a temperature of 28 degrees Celsius. Maintain vigorous aeration.
  2. Harvest the newly hatched nauplii. Rinse with fresh water and transfer to clean culture vessel. Stock at the rate of 5,000-10,000 newly hatched brine shrimp per liter in the new culture vessel. Do not feed nauplii at this time — they are absorbing the attached yolk sac. (Remaining nauplii can be fed to other tanks or stored in the refrigerator for later feeding or enrichment.)
  3. After approximately 18-24 hours from time of transfer to clean culture vessel, the nauplii will have molted into the Instar I feeding stage.
  4. Shake SELCO bottle well.
  5. Add 5 mls (10 drops) of SELCO per liter directly to the culture vessel. Add no more than 10 drops of concentrated SELCO per liter. Insure that the aeration is vigorously mixing the water column.
  6. After approximately 12 hours, the intestinal tract of the nauplii should be fully enriched with SELCO. Be sure to rinse the enriched nauplii with fresh water and feed immediately. Unfed enriched nauplii can be stored in the refrigerator for later feedings (see the Brine Shrimp Storage FAQ).

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