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Old 09-28-2008, 08:20 PM   #1
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Question Hydor Koralia 2 to replace Airstone?

Hi everyone, i'm a longtime reader, 1st time poster, and i need your help. I have a 40Gal acrylic long aquarium that i have setup for my Peacock Mantis Shrimp. it has live rock and live sand and nothing else. Im using a H.O.B marineland 150 filter(Rated for 30 gallons but i've had this setup for 3 months now). I do Biweekly PWC of 25% or 10 gallons. Everything is fine except for my airstone. I know SW needs surface agitation for oxygen exchange. So my question is; Can i replace the airstone with a Hydor Koralia 2 powerhead? the reason why i ask is because the aquarium is in my bedroom and the Whisper 40 Air Pump (Tetra) is keeping me up at night. I really appreciate everyones input on this and i'll post up pics pretty soon.
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Old 09-28-2008, 08:44 PM   #2
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I would got with 2 1s, each at one side of the tank pointing slightly up and toward each other.
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Old 09-28-2008, 09:24 PM   #3
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I have the HOB filter on one end of the aquarium agitating the water tho, would you still recommend 2?
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Old 09-28-2008, 09:31 PM   #4
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Hmmm, maybe back to a single 2 on the opposite end of the tank.
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Old 09-28-2008, 09:33 PM   #5
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sounds like a plan, hopefully i can sleep easier by getting rid of that airpump lol thanks Roka
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Old 09-28-2008, 09:33 PM   #6
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Sure thing!
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