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wet/dry or refugium

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wet/dry or refugium

Post by aaronmc_43 on Fri 18 Nov 2011, 10:27 am

So in another thread someone said I may need to get a refugium instead on my wet/dry because it could become unstable. How wild it become unstabe and why is a refugium socmuch better?
My tank is a 120 and my wet/dry was built for a 300gallon
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Re: wet/dry or refugium

Post by matt_longview on Fri 18 Nov 2011, 11:10 am

Most people agree that they become a trap for detritus over time. The maintenance to keep them clean doesn't outweight the benefits that they provide. Good quality live rock or rock rubble is typically used instead because it provides more deep holes with little to no oxygen transfer for the biggest advantage to marine biology... the bacteria that turns nitrates into nitrogen. That bacteria cannot live on the surface of bioballs or other surfaces, but only in low to no oxygen areas in the tiny pores of live rock or in a deep sand bed (however, the pros of deep sand beds seem to be outweighed by the cons as well).

The main reasoning, is that a wet dry does nothing extra for filtering on a reef tank that has a sufficient amount of live rock. Those same bacteria would live in the live rock in the tank... which if you have enough powerheads for flow... will be just as efficient as the wet/dry.

A sump allows you to do much more. Giving you a place to hide equipment for multiple types of filtration. Mechanical such as filter pads/filter socks and protein skimmers. Biological such as rock rubble or macroalgae and chemical such as carbon, gfo, chemi-pure, purigen ect.

It should be said... the filtering that you choose doesn't always have to be the best and most efficient. Some corals are simply easier to keep and don't need the water kept exceptionally clean. Those are soft corals, zoas & palys and mushrooms. Medium corals would be LPS, with SPS and anemones being the most demanding of water conditions and lighting requirements.

The main thing to do is to choose what you want to stock first, then begin choosing an equipment list from there. No point spending tons of $$$ on a softies setup. But if that money isn't spend on an SPS setup you're just begging to get frustrated constantly killing off corals.
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Re: wet/dry or refugium

Post by DonnieP on Sat 19 Nov 2011, 10:42 am

+1 on the wet-dry filter, they are nitrate factories when used on saltwater and in my opinion should not be used on a reef tank, a fish only with little liverock maybe but not reef. I went through the wet-dry trent 40 years ago but they are out dated nowadays. The only good thing they do is oxygenate the water. As Matt said, liverock is a much better filter than a wet-dry.
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Re: wet/dry or refugium

Post by aaronmc_43 on Mon 21 Nov 2011, 1:58 pm

Ok so got the 40 gallon fefugium from jason and had to mod my stand but got it in. I now have my skimmer running and sand,live rock, and chueto or what ever its called all down there now. The nitrates are a third what they were and water is no longer cloudy. Now how much do yall think I should ask for my wet/dry that's rated for a 300 gallon tank
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Re: wet/dry or refugium

Post by matt_longview on Mon 21 Nov 2011, 2:18 pm

Great to hear you got it all setup!

I have no idea on wet/dry filters pricing though. :-)
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Re: wet/dry or refugium

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