Dieter,
I think it’s rather unlikely that there’ll be a chemical reaction, apart from perhaps a slight variation in the pH level.
If you want to be on the safe side, simply add the Hüter to the stop bath or perform a dilution to create a ‘Hüter bath’.
The fixing and rinsing times may need to be extended!
Hüter is generally compatible with Tetenal Superfix and Adofix without any problems.
Regards,
Mirko
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