W/C's and drop in SG

[Borderjumper]

Originally Posted by bv_reefer

well i just put RO water, i didn't add salt because it was already at 1.023 so a 20% w/c with salt replacement would've kicked up to 1.025, i've never used saltwater as replacement water for a water change..

dunno. What Im confused about is him saying that using salt mixture would kick UP the SG... BV ya do know you can always use a little less salt in the mixture and match the SG with your existing tank? As in make your water change water 1.023 IF thats what your tank is at?