[quote author=GreshamH link=topic=3346.msg37849#msg37849 date=1205599560]
Norm, your right but.... theres a ton of plantonic bacteria in our tanks, ~30% less then the ocean but still quite a bit.
[/quote]
Ah, I see. So still worth getting some old water then?
Maybe don't wring out the sponges/floss too much.