Dry rock ?

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alittlemermaidy

Aquarium Advice Newbie
Joined
Apr 28, 2017
Messages
6
I know I want dry rock for my 20 gallon long reef tank but how many pounds of rock should I get I'm having a hard time finding out.
 
Really depends on how you want to aquascape and if you're running a skimmer. You won't need as much if you have a skimmer, but just as much won't hurt. If you're not using a skimmer, at least one lb per gallon.
 
And not all rock is created equal. Porosity and surface area matter. BRStv has a video on the subject
 
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