Refuge question

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Sapperski

Aquarium Advice Apprentice
Joined
Apr 25, 2013
Messages
19
So I have a 90 gallon SW aquarium that is NOT drilled for a sump. My question is: is there a way to install a refuge without drilling the tank?
 
Hang on back refugium. Or hang on back overflow to a sump with a refugium. I would go with the later.
 
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