This is a water test for the determination of chlorine in the aquarium.Chlorine is used to disinfect drinking water. The chlorine contents of tap water can regionally and seasonally differ considerable.
Chlorine destroys the gills and mucous membrane of the fish.
To ensure your aquarium is safe from the effects of chlorine aways use Sera Aqutan. In a pond use Sera Aqupond or Sera Koi-vit.
