08-31-2011, 11:50 AM
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Smallest HOB filter?
Hey guys, I built a 5 gal DIY tank for a specific application, and there is only a 4" space in the back for a HOB filter. The only filter I could find that would fit is the Red Sea Nano Filter. I've been building this tank for 2 years and between the time that I bought the Red Sea Nano Filter and the present, it has stopped working (which is odd, since I used it once to check that it worked, and then put it back in the box). So before buying another one so prone to failure, I thought I'd ask if any of you knew of any small(er) HOB filters?
The Red Sea Nano Filter was only recommended for 3gal tanks, whereas mine is a 5gal. I added a DIY sponge filter to supplement the HOB, but I have no idea what its filtering capacity is. Kind of OT, but any idea how to check the flowrate/capacity of that sponge filter?