Building a refugium

[Pinksteel]

I was thinking about adding a small refugium, but I have limited space. I have a 90gal tank and a 35gal sump, and would like to add possibly a 10gal regugium. Anyone with a good design for that size a refuge??

Could I rig something up in my existing sump?

Thanks in advance.

 

[BJJ]

Im no expert but I have read that one rule of thumb is the refugium should be about 10% of the size of you tank. In your case 10Gal would be sufficient 1/3 of your sump. I just converted my 90gal wet/dry sump into a refugium. below is a drawing of my fuge.