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post #1 of 7 (permalink) Old 11-08-2011, 04:35 PM Thread Starter
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Powerheads

How much is enough? I am going to pick up probably 1-2 powerheads and attach sponge filters to help with some of the filtering of large peices and pretty much use the canister as my water cleaner / CO2 diffusor system. My question is, I have a 125 gallon tank, what size power heads should I use to get a little flow but not overkill? I was thinking 2 x 128 gph should be more then enough?
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post #2 of 7 (permalink) Old 11-08-2011, 08:23 PM Thread Starter
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anyone? I dont really know how the outputs on these vary, but I dont want to turn my tank into a swirl zone!
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post #3 of 7 (permalink) Old 11-08-2011, 09:23 PM
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In my 60 gallon I'm running an AquaClear 50 powerhead with a rated flow of 270gph and my fluval 305 has a rated flow of 260gph. A powerhead with a flow of 128 would be for a 5 - 20 gallon fishtank. Are you sure you wouldn't just want to run one big powerhead instead of 2 smaller ones? I think those 2 would give you extra flow but I don't know how noticeable they would be
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post #4 of 7 (permalink) Old 11-08-2011, 10:03 PM
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just get some korelia's then they come in a wide range of flow rates an use like 4watts if its a 6' tank then id prob get the 2 of the 750's. i have a fluval 405 and a 425nano on a 40b with just the right flow looks like a slow breeze. i would bet that the 750's would do your tank just fine as you seem to be going very very low on your turn over rate! a good rule is 5-10x the tank size for a turn over rate. once i added the 425 i noticed a hugh improvement on my water quality and now had no dead spots so it lets the main filter suck up the crap floating for perfect water an i think thats what your going for.
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post #5 of 7 (permalink) Old 11-09-2011, 03:23 AM Thread Starter
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Thank you all! this gives me a lot better idea
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post #6 of 7 (permalink) Old 11-09-2011, 03:27 AM
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Originally Posted by NWA-Planted View Post
Thank you all! this gives me a lot better idea
I use a Wally World special rated at 170gph in my 30...it moves water like mad. I've actually gone to some efford to slow it down for my poor Angels, lol. I think it's due to the lack of depth in my tank, 12 inches front to back, once it hits that front glass everyone is going for a ride, lol.
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post #7 of 7 (permalink) Old 11-09-2011, 01:46 PM
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In my 60G (4'x1'x2'), I am running a Aquaclear 70 HOB (rated for 300 GPH) along with a Marineland Maxi-Jet 900 (rated for 230 GPH) and I get a ton of water movement in my tank. I keep my HOB and powerhead on the same side of the tank so I get a nice circular water movement around the tank. I may have to possibly tone it down a bit when I add my angels though. We'll see how they handle it first


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