Re: Sodium Bicarbonate

[Wright Huntley <jwwiii at pacbell_net>]

Ralph wrote:
> Isn't Baking Soda Sodium Bicarbonate?
> i have extremely soft water out of the tap (17ppm) and relatively low pH (6.5).  I have miserable hatch rates with brine shrimp. I normally use kosher salt and that always worked until I moved to my latest location.  I switched to marine salt mix and got about the same hatch rate and thought it was perhaps the eggs.  So I ordered a new batch of eggs and got the same resuts.
> So I switched back to the Kosher Salt and added Baking Soda, my hatch rate is more or less back to what it used to be before I moved.
> Ralph
>  Charles Nunziata <epiplaty at tampabay_rr.com> wrote:Although a bit more expensive, I've found common marine mix works best. I
> mix it to 1.010 to 1.015 density. Great hatches from most eggs, and a lot
> easier than finding the right formula.

This proves that we need to be more explicit when talking about marine 
salts. I remember once telling folks on the list that it was buffered to a 
pH of about 9.4. When someone disagreed with that, I tested a couple of 
brands and found that some are buffered high and some are not. For brine 
shrimp hatcheries, you want the high pH, so use baking soda if your brand 
of salt does not give you that. In most harder water areas, it is not 
really needed.

Wright

-- 
Wright Huntley -- 209 521-0557 -- 731 Loletta Ave, Modesto CA 95351

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