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- From: oleg@Veritas.COM (Oleg Kiselev)
- Newsgroups: rec.aquaria
- Subject: Re: brine shrimp
- Message-ID: <1992Nov18.012646.299@Veritas.COM>
- Date: 18 Nov 92 01:26:46 GMT
- References: <adwright.722017801@vincent1.iastate.edu>
- Reply-To: oleg@veritas.com (Oleg Kiselev)
- Organization: Palo Alto Killifish Loft
- Lines: 54
-
- Time to add the brine shrimp info to FAQ. We get these questions all too
- often.
-
- adwright@iastate.edu () writes:
- >I am interested in growing brine shrimp (Artemia) for fish food.
-
- The shrimp biomass to required water volume ratio is low and to grow enough
- shrimp to make them a staple food requires a lot of water.
-
- >Any >info or shared experiences would be welcome.
-
- Florida Aqua Farm publish a book on live food culturing. TFH and Tetra
- have large books on various live foods. Those are your best bets.
-
- As for "experience": on my patio, in light shade, I have a 5 gal bucket
- of salt marsh water from a road-side ditch on the North shore of the
- San Francisco Bay. It's full of brine shrimp and has been active since
- June or July. Now and then enough water evaporates for the salts to
- start forming a crust. I add some fresh water to the bucket then,
- usually the dirty tank drain-offs. There is at most 1 oz of brine
- shrimp there at the top of the "bloom". I go through approximately 1/2
- oz of brine shrim a day to feed my fish, so it would last me a day or
- two if I harvested it.
-
- The bucket is not aerated and is fed by occasional dumps of nutrients
- from the added water and the algae recycling the nutrients released by the
- dead shrimp. If it were harvested, the feeding would have to be a lot
- more frequent.
-
- To have a stable food source for my fish, I would need a 70-100 gal culture
- container, frequently fed and probably actively filtered.
-
- >I am also interested in
- >species of feeder shrimp that would work for fresh water.
-
- Grass shrimp, camel shrimp, gammarus and a few others live in fresh water.
- culturing them is not as easy as the brine shrimp.
-
- >Can brine >shrimp tolerate fresh water? How much salt do they need? (minimum)
-
- Brine shrimp live in fresh water for an hour or so, long enough to be eaten
- by the fish. They require at least the full strength sea water, though
- they do much better in a water somewhat more saline than that. Brine shrimp
- live comfortably in the Great Salt Lake and in the salt evaporation fields
- of the SF Bay.
-
- Brine shrimp are not the best nutrition for fresh water fishes. Insect
- larvae, ants, flies and mosquitos, as well as fresh water crustaceans and
- various worms make a much better source of food.
- --
- Don't blame me, I voted Libertarian.
-
- Oleg Kiselev oleg@veritas.com
- VERITAS Software ...!{apple|uunet}!veritas!oleg
-