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Review title: Best product in a while.
Product review: This pre-filter is a must if you raise fry or shrimp. I use them on a Aquaclear 70 and they do excellent both as a pre-filter and a guard to keep the shrimp from becoming pate. My only fuss is that the other model has a very fine sponge that failed after a couple of months. This one, with the course sponge, is great.
