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Old 12-31-2003, 12:34 PM   #1
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What size pump for a reef ready 72G?

I'm going to pick up this aquarium today but I have no idea what size pump to buy becaue I have no idea how much water these reef ready tanks can cycle?
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Old 12-31-2003, 12:35 PM   #2
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Each all glass overflow can flow about a max of 700 gph.
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Old 12-31-2003, 12:47 PM   #3
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Cool, thanks Hopefully I'll have a new tank up and running today or tomorrow if I don't get the stand done today.
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Old 12-31-2003, 01:05 PM   #4
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I think you'll want at least 1200 gph going through it, or at least that's what I am shooting for on my 72. anything greater than 10 X tank capacity (empty) is ideal. I am playing with one mag 9.5 and a cheap 500gph pump at the moment, but plan to lose the cheapo and add another mag 9.5 with a SCWD. I think it'll put me just under 1200 turnover after factoring in head height and all. Is it a bow front?
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Old 12-31-2003, 06:42 PM   #5
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I got a Iwaki WMD-30RLT-115 but I think I could have used a bigger pump. The guy said I'd need a ball valve at 4-5 feet but I think this pump is only rated around 500gph at that level. Anybody know of the flow rate on these because if the tank can handle a bigger pump I may as well exchange it now before I use it.
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Old 12-31-2003, 08:00 PM   #6
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what sump are filtration are you using? I am using a refugium, so I am going to go for about 6 or a bit higher turnover... a little slower than normal so the macro algaes can do their thing. On my 45 G main tank and 29 gallon fuge I think I am aiming for a mag 7 (about 700 GPH).
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Old 12-31-2003, 08:26 PM   #7
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I'm just using a wet/dry. The tank will only be for a puffer and a trigger or 2 so I"m not getting too complicated here. I"m just really mad because I specified I want a huge pump that would be capable of pushing as much water as the overflow could handle and now I find out this pump is only rated at like 500gph.
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Old 12-31-2003, 11:54 PM   #8
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What is the flow rating on your wet/dry? Some of them are not designed to operate with really high flow rates. If that's the case, you could get another pump and set up a closed loop. I know that means more money, but they work great. Another thing is you have a pressure rated pump which isn't necessary for a return pump. The Iwaki WMD30RLT is rated at 600 gph @ 0' head and has a shut off head of 17'. The same pump in an RLXT (not pressure rated) would give you 1140 gph @ 0' head and a shut off head of 13'. Another pump you might want to look into is the Blueline. These are very high quality pumps designed by an engineer who worked for Iwaki. The Blueline 30HDX will give you 1110 gph @ 0' head and a shut off of 13'. The Blueline's, IMO, are a little quieter than the Iwaki too. Another option would be a Little Giant 3-MDQX rated at 1000 gph @ 3' head. All these pumps should be within $10 of each other pricewise. An example is the Blueline at about $135.00.
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Old 01-01-2004, 10:28 AM   #9
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I've got a Mag-Drive 9.5 in my sump on my 75 gal and had to install a globe valve to throttle it back. It was performing faster than the overflow could handle.
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Old 01-01-2004, 10:55 AM   #10
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Also be sure and buy the new All Glass overflow kit. It is a modified Durso that works kick butt right out of the bag. It is all I have been installing in my customers tanks and it works flawlessly and is completley silent!
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