Dear Hans: Please see ...
Published by E. Hugh Pettman, Employee at Biophysics Research Pte. Ltd.
Dear Hans:
Please see attached file. Our product is 100% organic and will clarify water in fish farms, assist in the prevention of fungal infections and remove the sludge.
Please take a look at our web site, mentioned on the attached info.
I would be happy to discuss in details if you would like a call.
My email address is : pettman@soleco-technology.com
Regards, Hugh.