04-01-2013, 07:29 AM
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Originally Posted by frostbite
With all filtration off; will the "dust" settle after 10/12 hours?
Posted via Mobile Device
It depends on how clean it is to start. Even with all the rinsing that I did there is cloudiness on the first fill up, particularly after planting and scaping while water is in. I just siphoned off all the water and refilled it so I didn't wait for it to settle. It will, eventually, but the finer the particles still in the sand, the longer it will take to settle. After 12 hours, whatever is left in the water won't hurt a filter impeller, there is enough clearance in those, being a centifugal pump, to handle that.
I think I implied that it was just the rinsing that lets me have clear water even when playing in the sand, thats not completely the case. Once the tank is full, whatever fine stuff is left in the sand eventually settles into the bottom of the substrate layer, the cleaner the sand is initially, the quicker this happens. I look at my sand now and it looks a lot courser than it did when initially put in due to this settling. That is one reason not to got stirring it around, although, like I mentioned, I can do that without any cloudiness at all now.