Good to know, as I have my k4's on a wavemaker system switching them on and off I guess this mod would not work well on my system, as the blades would sometimes spin right but not all the time.
I have Crabs- when it was louder was it noticably louder, as well when spinning in the oppposite direction was the flow diminished?
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RSM 250. Clownfish, Fox face, Blue tang, Yellow tang, Kole tang, Clown tang, Coral beauty angel, French Angel, splendid dottyback. CUC, softies, lps, sps.
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