Hej!   Av en slump råkade jag precis läsa på min salthink (Red Sea Coral Pro) hur man ska gå tillväga när man blandar salt:   Never mix salt in an aquarium containing animals Always use clean, non-toxic utensils. Prepare the quantities of salt and water for the desired salinity according to the chart. Use reverse osmosis (RO) water at approximately 20°C/68°F. Always add the salt to the water.