If it is too dense or dark:
http://www.freestylephoto.biz/050010-Formulary-Reducer-1-1-Liter?cat_id=305

If it is too thin or light:
http://www.freestylephoto.biz/050065-Formulary-Chromium-Intensifier-Powder-Makes-1-Liter-of-Stock-Solution?cat_id=305

If a wet-print needs to be adjusted:
http://www.freestylephoto.biz/10101-Formulary-Potassium-Ferricyanide-Bleach-Powder-1-Lb.?cat_id=305

 

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