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What should I put in my new sump? Rock, sand mabby. Other Ideas. It's 36" long. I am putting a mag 18 in it for the return. It's being used in a 125 g tank.

40g sump.jpg
 

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Unless you have a need to raise more pods or to provide more biological filtration than your tank can provide there is no reason to add sand OR rock to your sump. Some macroalgae maybe and all your equipment. Keeps it simple and clean that way.
 

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Just some guy, you know?
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If you have sand in your main tank, using part of that sump as a refugiam is a great idea, you can grow cheeto in there. Other things to put in the sump are a heater, and your skimmer. Make sure the skimmer pulls from the first compartment, that way it get's raw overflow water for best performance.

HTH,
Whiskey
 

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I've got the REEF rash!
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Wiskey said:
If you have sand in your main tank, using part of that sump as a refugiam is a great idea, you can grow cheeto in there. Other things to put in the sump are a heater, and your skimmer. Make sure the skimmer pulls from the first compartment, that way it get's raw overflow water for best performance.

HTH,
Whiskey
Good Advise.
 
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