[thincat]

As far as the heater and the pump, you can do both. set you heater to ~80 degrees and let the pump stir your water to help desolve the salt. You should do this tonight if you are moving things tomorrow. Mix `to directions and fine tune with your 2x hydrometers as close to 1.025 salinity at 80 degrees water temp. Let this run and before you add it to your tank...test it again as it may go higher as all of the salt mixes. If higher, adjust with RO water, If low add a little more salt and mix for awhile.