Water Changes using NSW from White Rock

[dare2dv8]

$ can't be the issue being I'd spend the same amount of $ on gas as a bucket of salt...

Reading, I've found that a lot of people use nsw successfully and as advanced as asw has become you've got to remember everything in our tanks over millennia managed to survive in the ocean. For me, the question isn't nsw verses asw but the local quality of coastal nsw and the possible negative effects of human activity. If it's good enough for the Vancouver aquarium...Albeit in a filtered state. Next time I'm there I'll see if I can find someone to tell me what they're filtering and why.