Okay, I have a question. Dont laugh too hard.

arkansasboy

Reefer Wannabe
I keep reading about sumps and I am curious what the purpose is. I have an idea but I thought I would ask the pros. And how do you build one? I only have a 20 gal tank so would I need one? And what is a sump/refugium?
 
A sump is a way to add stability to your system by increasing water volume, and adding a place to hide your equipment. You don't have to have a sump on a 20 gallon, but there is no reason you can't. I have a 20 gallon tank (filled about 3/4s up) that I use as a sump for my 30 gallon.
 
My 20 just has a modded aquaclear 70 filter and it works wonders. It has strong flow and a lot of space for any chemical additives like chemipure. I recommend one!
 
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