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Old 20-10-2014, 08:45 AM   #9
johannes
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Bro Zonkkie,

If you insist on ious (I may get the acronym wrong), set your rock pile to the other end of the tank. That way it's far from the suction. But I heard sand may get sucked in? Need ious user to verify.
In your case I would rather use a canister, but place the inlet around 20cm above sand level.

Jo
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