David,

I use 1%HCl in 70% ETOH (not H2SO4) and have no problem whatsoever. 

Connie M 

At 02:54 PM 06/16/2000 +0100, David Grehan wrote:
>HELLO
>Does anyone know how to remove excess background carbol fuchsin stain
>when doing the  Wade Fite modification of the ZN method.  I
>differentiate with 10% sulphuric acid but find it difficult to get a
>relatively clean background. I can see the bugs but the back ground is
>still very pink.
>
>
>
Connie McManus
Veterinary Diagnostics Lab
Utah State University
Logan, UT
USA