When I had my 90 gallon set up I would fill a 10 gallon tank with DI water, I'd add 4 cups of Kent salt and turn on the 301 power head, 24 hours later I'd draw off 10 gallons from my sump (which was shut down of course) and I'd drain the water from the 10 gallon in. Some people say mix it as a brine and then dilute it, I figure, 10 gallons/4 cups of salt worked perfect for me why mess with it.
The 24 hours was enough to bring the water up to temp and let the salt mix in properly. Oh, and of course I'd use a water conditioner, Prime or Novaqua.
Doug
|