Re: NANFA-- anchor worms?

Klaus Schoening (
Thu, 26 Aug 1999 08:54:23 -0700

Ok now I am really confused..... Formaldehyde is a 37% solution of active formaldehyde in water.....
so the actual formaldehyde is already diluted...this is standard. Formalin is formaldehyde diluted 1
to ten with water, so in formalin, the active formaldehyde is only 3.7 %. When you are saying 40%
formalin are you really referring to stock formaldehyde??? Thats what it sounds like!!!!

D. Martin Moore wrote:

> Oops, actually that was inaccurate. The recommendation is 2.5 ml
> of 40% formalin, in 10 liters of water, for 30 minutes. Innes
> recommended 20 drops per gallon (which is about the same
> concentration) for 5-10 minutes, or until the fish shows exhaustion
> > Martin,

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