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Originally Posted by newguy
I ran mine without filtration for about 6months without cleaning off of a MAG 7. It never clogged up, but it was quite loud (sounded like grinding gears when it switched sides). It got quite annoying once I moved my tank to my room.
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I run mine on a mag12
it grinds a little but only when it switches to the right side. it's been running for about a month. i've got 2 returns on each side of the device...that was a mistake :P I thought 1200g/hr thru 2 would be ok...killed my surface turbulence.