thecichlidpleco
New member
I am thinking of buying from a fellow reefer a tunze 3116/2 which is a just hang on the sump variety which comes with its own internal pump that cannot be used as a return or a E.T.S.S. Reef Devil but I would have to buy a magdrive, and still get another pump for the return. What is the better one for a 40 gallon in a 20 long sump?