SELCO Liquid Enrichment
SELCO (Self-Emulsifying Lipid Concentrate) was developed by Artemia Systems in Belgium and has been the benchmark artemia and rotifer enrichment formula to the aquaculture industry.
SELCO is rich in Highly Unsaturated Fatty Acids (HUFA’s) and contains particularly high levels of the essential Omega-3 fatty acids, eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA). Just 3 – 4 drops per liter or quart of water is sufficient for enriching thousands of artemia nauplii and adults, as well as rotifers.
SELCO is not intended as a feed for rotifers, artemia, or other zooplankton, but rather a short-lived immersion treatment that via ingestion and surface-coating of zooplankton vastly improves the lipid content and nutritional value of the zooplankton. SELCO has been shown to increase both survival and growth in marine fish larvae.
For best results, follow these simple instructions: – Do not enrich nauplii in their hatching water! Prepare a new cone or culture vessel for the enrichment process using fresh seawater. Adjust salinity to 35 – 45 parts per thousand (ppt); temperature, 28 degrees Celsius; and maintain vigorous aeration. – Harvest the newly hatched nauplii. Gently rinse with fresh water (an Artemia Sieve works well for this step) and transfer to a 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 their attached yolk sac. (Remaining nauplii can be fed to other tanks or stored in the refrigerator for later feeding or enrichment.) – After approximately 18 to 24 hours from time of transfer to clean culture vessel, the nauplii will have molted into the Instar II feeding stage. – Shake SELCO bottle well. – Add (.3 grams) 3-4 drops of SELCO per liter directly to the culture vessel. Add no more than 3-4 drops of concentrated SELCO per liter. Insure that the aeration is vigorously mixing the water column. – After approximately 12 hours, the intestinal tract of the nauplii should be fully enriched with SELCO. Harvest enriched nauplii and feed immediately. Unfed enriched nauplii can be stored in the refrigerator for later feedings (see “storage” under the Tech FAQ section). Store SELCO in the refrigerator. Order today and start improving your aquarium’s nutritional needs with our complete line of specialty products.
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