Re: Hatching Brine Shrimp

["kent sahr" <ksahr@email.msn.com>]

Happy New Year to all!!!!

I think that there is a bunch of horrible quality shrimp eggs on the market
now.
I've had very poor hatches from the last 2 cans (Summit brand). Even after
36hrs  half is a mucky mess in the bottom of the bottle.  Just opened a new
can of INVE brand and the hatch seems 100%. . I've never seen this brand
before but it's amazing; just like the old days.

KENT
-----Original Message-----
From: Randy Carey <carey@spacestar.net>
To: apisto@listbox.com <apisto@listbox.com>
Date: Wednesday, December 27, 2000 8:45 PM
Subject: Re: Hatching Brine Shrimp


>I'm interested to hear if there are any more aquarists who are experiencing
a
>drop in bbs hatching.  With my past two cans, I certainly have seen a
severe drop
>even though I'm not really doing anything differently.  I used to have a
cloud of
>orange in 20 hours.  Now I'm getting mostly a bed of unhatched eggs on the
bottom
>with a small amount of of bbs hovering just above those unhatched cysts. I
have
>to work harder at harvesting just to get enough bbs for my fry tanks.  So
I'm
>raising the heat and going 36 to 42 hours -- the results are better, but
nothing
>near what I was getting.
>
>I suppose that I've just have gotten a couple of bad/old cans.  I'm hoping
this
>won't be a trend in the quality of eggs that are going out.  I don't like
paying
>$60 a can, but right now that sounds like a deal if I can get the type of
hatches
>that I once got.
>
>So please report if you start finding a significant drop in hatches as you
break
>into new cans.
>
>--Randy
>
>
>
>jonathan wrote:
>
>> Hi gang! I am having terrible hatch rates with Brine Shrimp cysts
(Artemia
>> spp.). I am using a heater keeping the hatchery at about 75 F, I used 50%
>> seawater and 50% freshwater to achieve a specific gravity of 1.014 (as
>> recommended by the package instructions). I use airstones for circulation
>> and aeration. I can only guess that the salinity is inappropriate. I used
>> to hatch brine shrimp with great success years ago. I seem to remember
>> using something like a tablespoon (3 teaspoons) of salt per gallon (1.004
>> specific gravity). What salinity level (ppm)/ specific gravity/ teaspoons
>> or tablespoons of salt per gallon has been successful for you fellow
>> aquarists?
>>
>> Kind regards,
>> Jonathan
>>
>> -------------------------------------------
>> Jonathan Fung... Reef Geek
>> Dalhousie University Honours Marine Biology
>> Aqua Creations Inc. Assistant Manager
>> writer for Marine Fish Monthly
>> -------------------------------------------
>>
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>
>
>
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