I agree, replace the fan...
I have the same unit, and mine is quite, I don't hear a thing. You can go to Memory Express (2 locations in Calgary) and get one there, most likely will be under $10
Your old one, the bearings are probably worn out or faulty.
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Setup: 180G DT, 105G Refuge (approx. 300lbs LR, 150lbs Aragonite)
Hardware: Super Reef Octopus SSS-3000, Tunze ATO, Mag 18 return, 2x MP40W, 2X Koralia 4's Wavemaker
Lighting: 5ft Hamilton Belize Sun (2x250W MH, 2X80W T5HO)
Type of Aquarium: mixed reef (SPS & LPS) with fish
Dosing: Mg, Ca, Alk
Last edited by globaldesigns; 09-25-2009 at 03:55 AM.
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