What size sump?

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I have finaly decided on what size tank I am going to build.

It will be 1.8m x 0.750 x0.750. I have had a few quotes to build it.

The volume will be approximately 950 liters.

What size sump would I need to build?

I would like to place the skimmer inside the sump.
 

jacquesb

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Kevin - ideally you would want to have the biggest sump that you have space for. In your sump, you can then have a decent sized DSB. The total surface area of a DSB is just as important as the depth. The more the surface area of the DSB, then the better the filtration performance. Also, the more life it can and will accommodate.
The sump can and should fit nicely into the cabinet/stand, below the tank.
 

jacquesb

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Kevin - a DSB is effective as a filtration method, if the "Deep Sand Bed" is between 120mm and 150mm deep.
The particle size of the sand should not be more than 1mm in size. I would say between 0.05mm and 1mm would be ideal.... A difference in particle sizes would be even more ideal, as this then allows different micro fauna to settle in better. As not all sand particle sizes are ideal for all micro fauna.
 

jacquesb

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You can either go for the expensive stuff, ie CaribSea Aragonite, or the cheaper option (which many people uses too), Reggie's (or Toys-R-Us) play-sand.....
The sand particle size is what they call, "sugar fine". This seems to work very well.
BUT - if you can add some bigger granuled sand it would be ideal.
 

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