250 ml (Item No.:80350)

Product variants


500 ml


1.000 ml


5 l

Product details

Water treatment with protective colloids. Protects mucus membranes and gills by binding chlorine and heavy metals. 250 ml will treat 1,000 litres of tap water. Dupla Gan does not impair the Dupla fertilizer system. 5 ml for every 20 litres of mains water is used when replacing the water or setting up the aquarium.

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Ultrapure Water Filter

with Colour Indicator

Dupla Cube Set

Clear glass aquarium set