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I need some help. I have currently have a 75 gallon tank. I'm going to put a 20 gallon sump in with an overflow box. My return pump is rated l/hr 2439 - 23 watts. My question is would this be a good skimmer for me? I've never done sump before so I'm not sure what all I need.
http://coralvue.com/nwb110/

Would this set up work ?

Or should I get the 6"
http://coralvue.com/nwb150/

I'm not familiar with pinwheel at all. I'm going from a Hang on the Back skimmer so any help and advice would be great. Drilling is not an option right now.
 

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how many gallons your overflow box rated at? a stronger pump between 3000-3750 ltr/hr would be better as you will lose 300-1000 ltr/hr from the sump to the DT.

I dont know much about Reef Octopus Skimmers. the 6th is going to better the 4th as it can handle more.

make sure your overflow box handle more the return pump.
 

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Aquatic Philosopher
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I have handled both skimmers and I would really recommend the 6" body over the 4" body. While the 4" could do a 100g tank, it would have to be lightly stocked and have more "dirty" watter loving corals. If I was rating it, I would cap it at 60g for moderately/normally stocked tanks. Go with the 6" body and you will be very pleases... and the collection cup is bigger so it might not require dumping it as often.

In my opinion, the pinwheel is the best invention for a skimmer since.. well, the submersible resin filled non-oil bearing skimmer pumps. It is the best way to mix air/water right now and although the stock Octopus pump is good enough for the skimmer, if you can, check out the Super Reef version with the bubble blaster pump.
 
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