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Sponge filter uptake position


Maurice

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Hi Guys,

 

Just out of interest, do you have your sponge filter's uplift pipe above the water surface or underneath?

And is there a reason for your choice?

 

Lastly, is there a big difference having it, or above or under the water surface

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Hi Maurice,

   The pipe's on my HMFs are at surface level.   I think it helps to keep the surface moving for transfer of NO3, ammonia, and other problems away from tanks.   I have thought about sub-surface/ half under surface in the past but figured I would have to put a barrier on it so shrimp would not swim behind filter.  Thinking about it now, half under would give me more water volume in tank but not sure that would be beneficial.  Need to do some math.,,,,   Mike

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Maurice, I have my double-sponge filters right at the waterline......half in, half out.  For all of my regular (hydro) sponge filters they are 1-2 inches below the water surface.

 

I don't see any notable differences in either setup.

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