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#1
09-23-2008, 07:57 PM
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Use a vacuum tube and suck a little out at a time, maybe 1/3 at a time. If you remove it all at once you will get a high ammonia spike and kill everything.
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Marty 50g reef, bubble king skimmer,20g sump,zeovit system, PM cal reactor 
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#2
09-23-2008, 10:20 PM
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When I moved I sort of went direct DSB to BB with my 75g (DSB in the old house, ~2 hours later tank set back up in the new place without the sand). Probably used over 50g of new water though.
If I was to siphon out bit at a time would think going top to bottom in a section would be better than a 1/3 off the top.
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#3
09-23-2008, 10:24 PM
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BB here also.
I would support and second top to bottom in one section method rather then exposing laers of different bacteria that are not used to be exposed anyway. Small square every water change is good way to get rid of the sand.
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