These jeabos are decent little pumps! Noise is acceptable (while not silent, very quiet with the stand doors closed). The cooling fans on the reef radiance fixtures are obnoxious. They run full speed all the time and that's all I can hear. The bean animal, well all I can say is wow. The flow that it handles silently is incredible. The flaw with this tank is the fact that I started with a reef ready tank. As flow gets up over 800gph (guesstimate) the water cascading over the wall of the overflow starts becoming noisy. In hindsight I would get a regular tank, c2c overflow it with the beananimal and probably try to keep the overflow as small as possible using a similar design to the "ghost". I picked up a 48" maristar fixture to have for when I decide these LED's won't cut it as corals start to accumulate. I know I have been adamant about "efficiency" but what's the point of a reef tank if the corals don't grow and look good?
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