Hagen Marina Multi-Vaccum Replacement Bags, 2-Pack

I have tried a couple of gravel-vacs and round filed all but the multi-vac. Did find one of over a dozen bags with a small hole. They hold all I can suck up but the water. They are not water filters but bags to contain all the crud that goes to the tank bottom.

they work great. I have already ordered more. they pick up all garbage in the bottom of the tank. I would recommedt these filters.

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These bags are perfect. They basically look like a baby's sock. They just slide on and you can use them again. Just flip it inside out and rinse off. The material is like cotton. Once the dirty water is pumped into the sock, it completely collects all the debris and lets the clean water flow out of the material.

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I have a Fluval Chi tank and this vacuum works great for cleaning it up. The firs bag didn't wear out, I lost it, now I have a backup.

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Marina Multi-Vac Replacement Bags (2/pkg)The bags leak out the dirty water back into the fish tank making a mess.