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organisms. r toxic to aquatic organisms. r harmful to aquatic organisms. r may cause long-term adverse effects in the aquatic environment. r toxic to flora. r toxic to fauna. r toxic to soil organisms. r toxic to bees. r may cause long-term adverse effects in the environment. r dangerous to the ozone...
the author, roberto r. hensen, discussed water quality standards and how to maintain these standards in practical situations. in short, a very useful tool for every company active within the ornamental aquatic industry. with this -page book in a format (including many colour photos), ofi aims to contribute...