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Old 01-19-2008, 06:00 PM   #1
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Suggest Return Pump/Powerheads for Aggressive Tank

Finally beginning work on a 125RR in my basement. Plan to plumb through a wall in my finished side, over to a 50g sump/fuge in the unfinished side.

I was running a Mag 9.5 for the past year as a return in my 110 set-up and I wasn't happy with it. Very noisy and ran hot. Still in perfect shape so I could continue to use it since my sump will be in a different room.

1. How much flow should I be returning using only the two 1 1/4" bulkheads as drains?
2. Can someone recommend a return pump for this purpose?
3. Can someone suggest a couple powerheads for a 125 aggressive tank? Was thinking of 2 Hydor Koralia 2's or 3's which would get me 10-15x turnover. I've always believed in good water movement, corals or not - but, I thought I read (although i can't find it now) that porcupine puffers don't like heavy flow. I plan on having a porc, a large angel, an eel, and a trigger of some type.

Any help would be...well....helpful.

- Skins

210 gallon aggressive tank in process.
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Old 01-19-2008, 06:17 PM   #2
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I really like Maxi-Jet pumps and have had good luck with them for flow.

I like my Dolphin 7500 pump, but I'm pumping from floor to floor. It is almost totally silent. I always recommend installing a globe valve in case the flow is too much.

Had a Mag 7.5 and 36...hate them both, although I use the 7.5 to mix SW since it heats the water while mixing as good as most heaters. Mag 36 is in the box.

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Old 01-19-2008, 06:36 PM   #3
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I should have mentioned that I am not a maxijet fan. I was running 4 in the 110 originally and never really liked them. I actually mentioned it in my post but looks like I edited that sentence before I posted accidentally.
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210 gallon aggressive tank in process.
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Old 01-21-2008, 11:12 AM   #4
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The Hydors have a very gentle cone shaped flow, as opposed to the direct flows of the maxi-jets. I really like mine, I have had snails crawl over the intakes and not get stuck or sucked in. For a 125 I would go with the 3's or 4's depending on how much flow you have coming in from your return. I am planning on having my returns come in and near the bottom of the tank, pointing slightly upward to keep the back glass clean.
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Old 01-21-2008, 12:17 PM   #5
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I have 2 hydor koralia 2's on my 46bow and sometimes i feel like its not enough. With a 125 gallon I would go with the 2 of the koralia 4's And possibly another power head(or your return pump) in the center of the tank. 600gph out of a hydor koralia really feels like 200gph out of a maxi-jet the flow ratings are either decieving or the flow is so wide you cant really feel it as much.
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Old 01-21-2008, 12:35 PM   #6
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Your overflows and drains are probably rated around 600gph each. I beleive I'm running around 700gph on my return pump. I also have 2 of the Hydor Koralia 3's in my 125. That is almost too much flow for some shrooms and lps. I even had to move my clam a bit to get it out of the flow area.

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