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Old 06-30-2005, 06:24 PM   #1
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Mag 7/9.5 pump questions

I have a 90 gal reef tank with Velocity T2 external pump and a wet/dry-turned-sump. I have several reasons for change. The pump adds a lot of heat to the water. With no heater or lights the tank is 82F when it's 74F in the house. I want a bigger sump and I want it cheap (DIY). The T2 pump is rated for 650 gph @ 3' head. My return is a 1" bulk-head (built-in overflow) with durso standpipe.

The plan:
Replace wet/dry sump with a 30 gal tank (that's the biggest that will fit). I'll put in some baffles and all that too.
Switch to either a Mag 7 or 9.5 and run it submerged.

Questions:
1. Which Mag should I get? It will go 4.5' up with one elbow. I want it to be close to silent so if there's a big difference in noise between the 7 and 9.5 then I'll just go with the 7. Maybe the 9.5 is too much for my 1" bulkhead return anyway?
2. I've read claims that the Mag pumps only raise temps 1 or 2 degrees. Is that a typical experience?

Thanks!
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Old 06-30-2005, 08:12 PM   #2
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I would suggest the Mag9.5 It will pump simular performance at 4.5' head. Nither mag is to terrible loud. The biggest issue will be if its vibrating on the glass and a simple bit of padding fixes that real quick. I have never seen heat problems due to a Mag of the size your talking about.
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Old 06-30-2005, 09:16 PM   #3
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I am happy with my mag9.5 on my 75G. The only thing extra are suction cups.
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Old 06-30-2005, 09:28 PM   #4
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Can you hear your mag 9.5 at all? I guess a good test is how far you have to be from it to not hear it.
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Old 06-30-2005, 10:22 PM   #5
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where did you get suction cups for the mag pump>>
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Old 07-01-2005, 01:49 AM   #6
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i have a mag 13 for my 80g and i don't hear it unless i am 5 feet away. it's quieter than any of my older pumps that were weaker as well
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