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householdofpayne

UV Sterilizer

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So looks as though I’m fighting the ick bug again 😞 gonna add a UV to the tank and am looking for some recommendations. I’m leaning towards and emperor, anyone recommend anything other than that? I have a 60gal system but like to oversize things.

 

https://www.bulkreefsupply.com/emperor-aquatics-smart-uv-25-watt.html

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I've only ever used a coralife 3x uv sterilizer and haven't noticed any issues and have seen a decrease in water column bacteria when observed under a microscope. They are about $100 New and are rated for up to 125 gallons. A couple things with any uv sterilizer is one, you want a very slow water moment through them in order to work, like only a couple gallons a minute so the microorganisms have as much contact time as possible. And second, uv sterilizers (at least consumer ones) don't actually generally kill the bacteria, virus, or algae. (Despite what alot of articles say) Uv light breaks the bonds between the DNA strands inside the microorganism, rendering it unable to reproduce and cause an outbreak. To my knowledge at least.

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I really like my AquaUV Classic.  They are more compact than other brands which was important for me to fit it inside my cabinet.  You can get them with 3/4" or 2" fittings.  Maintenance is really easy.  I clean my quartz sleeve every 6 months and replace the bulb yearly, and it's a really simple process.

Here's the 2" version, which is $40 less than your Emperor model, and 9" shorter:

https://www.123ponds.com/a00028.html

Screen Shot 2019-04-16 at 1.01.52 AM.png

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7 hours ago, SuncrestReef said:

I really like my AquaUV Classic.  They are more compact than other brands which was important for me to fit it inside my cabinet.  You can get them with 3/4" or 2" fittings.  Maintenance is really easy.  I clean my quartz sleeve every 6 months and replace the bulb yearly, and it's a really simple process.

Here's the 2" version, which is $40 less than your Emperor model, and 9" shorter:

https://www.123ponds.com/a00028.html

Screen Shot 2019-04-16 at 1.01.52 AM.png

Interesting that marine depot carrys the same product in a different dimension. Do you see any other differences I'm missing? The marine depot one has on option for a wiper. Not sure I could utilize that with my space though.

https://www.marinedepot.com/Aqua_UV_25_Watt_2_inch_UV_Sterilizer-AV2201-FIUVUU-AV2201-vi.html

Found this one also for a very competitive price. Any con to the 3/4" outlet? Almost looks like a coupling that is removable. I was thinking I would be putting barbs there anyways. The smaller inlet shouldn't be a big deal beings you want lower flow anyways yea?

https://www.amazon.com/gp/product/B0006JDVR4/ref=ox_sc_act_title_1?smid=ATVPDKIKX0DER&psc=1

Edited by householdofpayne

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6 hours ago, NateDawg said:

I've only ever used a coralife 3x uv sterilizer and haven't noticed any issues and have seen a decrease in water column bacteria when observed under a microscope. They are about $100 New and are rated for up to 125 gallons. A couple things with any uv sterilizer is one, you want a very slow water moment through them in order to work, like only a couple gallons a minute so the microorganisms have as much contact time as possible. And second, uv sterilizers (at least consumer ones) don't actually generally kill the bacteria, virus, or algae. (Despite what alot of articles say) Uv light breaks the bonds between the DNA strands inside the microorganism, rendering it unable to reproduce and cause an outbreak. To my knowledge at least.

Have you opened it up? I have read some of the coralife units rust up inside.

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I also have an AquaUV 40 watt unit and like it.  it's on my 80g QT setup that i run before i treat the fish with cupramine and prazi.  per my research it seemed like it was best to go with an over sized UV so it is effective, especially if you have a high flow rate through it.  another option is to have a small dedicated pump or a tee off your return line so you can control how much water is going through the uv.  

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42 minutes ago, kilmca said:

I also have an AquaUV 40 watt unit and like it.  it's on my 80g QT setup that i run before i treat the fish with cupramine and prazi.  per my research it seemed like it was best to go with an over sized UV so it is effective, especially if you have a high flow rate through it.  another option is to have a small dedicated pump or a tee off your return line so you can control how much water is going through the uv.  

Going to set up on a dedicated pump for the time being. Getting a variable pump and building a manifold, so a gate valve will be in order for sure.

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2 hours ago, householdofpayne said:

Have you opened it up? I have read some of the coralife units rust up inside.

Here are a couple pictures of the inside, I've never seen rust in it before, and from what I can see, the only material the water touches are the plastic housing and the quartz tube that encapsulates the uv bulb. And neither of those can rust, so I'm not sure where rust would come from. I know I get calcium build up that has to be cleaned occasionally though.

20190416_075043.jpg20190416_075031.jpg

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9 minutes ago, NateDawg said:

Here are a couple pictures of the inside, I've never seen rust in it before, and from what I can see, the only material the water touches are the plastic housing and the quartz tube that encapsulates the uv bulb. And neither of those can rust, so I'm not sure where rust would come from. I know I get calcium build up that has to be cleaned occasionally though.

20190416_075043.jpg20190416_075031.jpg

Interesting I don't see and sources for rust either, but it was a common theme in reviews. Does it have an internal pump maybe?

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1 minute ago, householdofpayne said:

Interesting I don't see and sources for rust either, but it was a common theme in reviews. Does it have an internal pump maybe?

Nope, no internal pump, I know there's been times when my nutrient levels have been high and the calcium buildup has been a little brown in color, but it's definitely not rust. Maybe others were mistaking that for rust possibly? But I've been looking through this thing all over and I can't see any possible place for rust to come from.

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1 minute ago, NateDawg said:

Nope, no internal pump, I know there's been times when my nutrient levels have been high and the calcium buildup has been a little brown in color, but it's definitely not rust. Maybe others were mistaking that for rust possibly? But I've been looking through this thing all over and I can't see any possible place for rust to come from.

Thanks for the feedback! 

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3 hours ago, householdofpayne said:

Interesting that marine depot carrys the same product in a different dimension. Do you see any other differences I'm missing? The marine depot one has on option for a wiper. Not sure I could utilize that with my space though.

https://www.marinedepot.com/Aqua_UV_25_Watt_2_inch_UV_Sterilizer-AV2201-FIUVUU-AV2201-vi.html

Found this one also for a very competitive price. Any con to the 3/4" outlet? Almost looks like a coupling that is removable. I was thinking I would be putting barbs there anyways. The smaller inlet shouldn't be a big deal beings you want lower flow anyways yea?

https://www.amazon.com/gp/product/B0006JDVR4/ref=ox_sc_act_title_1?smid=ATVPDKIKX0DER&psc=1

I'm not sure of the difference between the model I posted and the one at Marine Depot.  AquaUV has a pretty wide range of products.

Going 3/4" shouldn't be an issue.  I originally posted the 2" model since the Emperor you initially posted was 1.5" plumbing.

One thing to be aware of though is the recommended flow rates.  A lot of people say the flow should be very low, but the longer the water is exposed the higher the radiation will be and it can kill things you might not want to kill.  See this sizing chart from AquaUV's documentation, and read the footnotes below the chart:

Screen Shot 2019-04-16 at 10.25.32 AM.png

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18 minutes ago, SuncrestReef said:

I'm not sure of the difference between the model I posted and the one at Marine Depot.  AquaUV has a pretty wide range of products.

Going 3/4" shouldn't be an issue.  I originally posted the 2" model since the Emperor you initially posted was 1.5" plumbing.

One thing to be aware of though is the recommended flow rates.  A lot of people say the flow should be very low, but the longer the water is exposed the higher the radiation will be and it can kill things you might not want to kill.  See this sizing chart from AquaUV's documentation, and read the footnotes below the chart:

Screen Shot 2019-04-16 at 10.25.32 AM.png

Interesting, beings the recommended uv rating is so much lower then the fish disease setting, do you think that killed planktonic food supply could be combated with more target feeding?

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Just now, householdofpayne said:

Interesting, beings the recommended uv rating is so much lower then the fish disease setting, do you think that killed planktonic food supply could be combated with more target feeding?

Absolutely.  I target feed my corals twice per week, and I doubt they're getting much food in between.  

 

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5 minutes ago, SuncrestReef said:

Absolutely.  I target feed my corals twice per week, and I doubt they're getting much food in between.  

 

Yea I already target feel also. Figured my sock catches any food left in the water that goes down to the sump anyways 

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So how long do the plastic housings last? I got about 2 years out of my pond uv/filter before the UV exposure deteriorated the housing to where it crumbles apart. What's funny is the outside of the housing that's exposed to weather and sun all year looks new.

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