Re: Good Brand of Salt

[Wright Huntley <huntley1 at home_com>]

Hi Monte,

I'm curious about your tap water. What's the pH and KH of it? I think it's
one of our overlooked variables when things work well for one and not for
another.

Your method works, but very poorly for me if I use relatively unbuffered
water. I suspect your method would not work at all well in San Francisco and
some other places where the tap water is so unbuffered the pH crashes before
the hatch even gets started.

If I use my fairly hard, high-pH tap water, the eggs are very slow to wet. I
can use plain salt for the hatch, tho, with good results. [I need the
wetting if all are to hatch in 24 hours, tho.]

Since I use RO to wet the eggs, I need to add some buffer, like baking soda,
to keep the pH up and not kill the nauplii prematurely.

I'd love some way around this problem. It takes 15-30 minutes to get the
same wetting in hard tap water as I get in 1-2 minutes in RO. I haven't
tried wetting in 1/4 of the total, in RO, and then bringing it to full with
tap when I add the salt. Maybe that would improve things for me.

Wright

Monty Lehmann wrote:
> 
>          Hi Killinuts!
> 
>                I use Diamond Crystal Kosher salt. It has no additives.
>                 5 lb box at Foodlion or most grocery stores runs about
>                 $1.05 to $1.15. It is top quality and nearly always
>                  available, and always the same grain size.
> 
>                 I use only this salt and I get very good brine shrimp
>                hatches from nearly all kinds of brine shrimp eggs.
>                 I have hatched Sanders, OSI, Premium and SF Bay
>                  as well as other brands of eggs with no problems.
> 
>                 Simple set-up. Take an empty three ( not two) liter
>                 soda pop bottle ( the kind that sells for 88 cents in
> the
>                 store when full of the really cheap orange soda).  Add
>                  3/4 cup of the Diamond salt, fill with tap water up to
>                  just where the top of the bottle starts to curve or
> bend
>                  towards the spout and add a vigorously bubbling air
>                  stone.  Add some BBS eggs. No additional heat or light
>                  are necessary. { nice but not necessary!}
> 
>                  First hatchers ( very small shrimp) around 30 hrs (
> this
>                  varies a little depending on the temperature of your
>                  house or the room the hatcher is in.) I feed three to
> four
>                  times from this hatcher and then re-start it. I have
> two
>                  hatchers going at all times so I have a constant source
> 
>                   of BBS.
> 
>                   I have used this set-up for many years and it has
> never
>                  failed me.
> 
>                          Monty Lehmann
> 
> ---------------
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-- 
Wright Huntley, Fremont CA, USA, 510 494-8679  huntleyone at home dot com

          If it ain't broke, don't fix it -- and, especially,
            don't let politicians fix it. ... Thomas Sowell

               *** http://www.libertarian.org/ ***
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---

References:

• Good Brand of Salt
• From: Monty Lehmann <lehmann at jlab_org>

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