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Title: 250 impeller upgrade
Review: I UPGRADED THE 250 TO A 400 IMPELLER;SKIMMER WORKS SUPER EVEN BEFORE BREAK-IN PERIOD,THE BIGGEST PROBLEM WITH THE 250 IS NOISE AND POOR SKIMMING;NOISE STILL WITH UPRADE BUT NOT AS loud;i use the skilter for extra filtration,water movement and extra skimmer
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