How much salt do I put in my pond? Generally, the rule of thumb for adding pond salt to your pond is to use 2 ½ cups per 100 gallons of water. Use only 1 ½ cups for heavily planted ponds. You can sprinkle this salt around the edges of the pond or dissolve it in water first, then pour it into the pond.
How much salt do I add to my pond? The dosage of pond salt is extremely important. It is recommended that 1 gram of salt is used per litre of water. It is also a good idea to space this out over time; using the ‘little but often’ approach again is probably best. Space out your salt treatment over the span of 3-4 days.