dissolve in a cup of tank water and add. 1 teaspoon per 5 gallons is hardly
likely
to upset your plants.

marcos wrote:
Do I add the salt in the buckets for water change or into the tank or
what? Won't the salt affect the plants in any way? So for 70 litres,
how much salt do I add? Yes, I've got gravel. By saying treated
water,u mean dechlorinated water rite? OK.
john..