Aqua 57w UV Light Input

[KevinsHVAC]

I have a 265g tank with a 40g sump. Id say around 300g total for the system. I am trying to spec out a pump for this light and am having trouble. I was going to use the Jebao DCT4000 but I think even at its lowest setting it will still move too much water. I was trying to find something around 300gph. After doing some research the slower the better for more killing power and surface coverage.

My other question is I picked this thing up used from another RC member and it goes from 2" to I think 1". To use a pump capable of doing 300-400gph I would probably need 3/4 or 1/2 piping/tubing. Will this hurt the light at all reducing it that much?

Last question, how would you plumb this? Pull from drain section and dump back in drain section? Dump in return? Dump in tank? Thanks

 

[thabizness]

Take a look at the AquaUV brand sizing chart. Just Google it and you can find it online. If you want to follow the spec for a fish only you will need to have the UV unit do between 75,000 to 90,000 uw/cm2. The GPH for this is 1066 - 1280gph. If you have a reef the gph is higher. The uw/cw2 for a reef is 30,000 - 45,000 and GPH is 2133-3200. These AquaUV units are made to push large amounts of water and not the small gph you see on different units. At first I didn't believe this because on the forums you do normally see these small gph numbers but after reading a ton of threads I did finally read the spec and I also called their support to be sure. The spec clearly says the range under the chart and support confirmed the correct gph for these units.

The spec also says if u run it lower gph then the reef tank spec you will risk killing the planktonic life.







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[thabizness]

I found it.

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[KevinsHVAC]

I guess what I was referring too, was the flow rate to kill ich which I read was like 360,000. So the I would need to slow the gph down to 265gph to get 360,000. Ill see if I can find that thread somewhere. I had just read that the slower the better? Am I wrong?

 

[KevinsHVAC]

take a look at this and let me know what you think

http://www.atlantareefclub.org/forums/showthread.php?t=36805

 

[thabizness]

I saw that thread while researching. It's good info. In fish only slower is better. As far as ich most here will say UV won't work for it because you can't get 100% of your water through it so you will always have free swimmers that never get touched by it which continues the infection... At that high of UV exposure you will kill the planktonic life that also feeds corals/clams so that's bad too if you have them. I think its a balance for a reef like everything else. For a fish only it would be good to run that rate but for a reef uv ran to high could mess things up. I ran it to help on a algae outbreak/clarifier and if it killed ich in multiple passes so be it but I cared more about the planktonic life so I ran mine close to what AquaUV specified for a reef.

Good luck.

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[KevinsHVAC]

I saw that thread while researching. It's good info. In fish only slower is better. As far as ich most here will say UV won't work for it because you can't get 100% of your water through it so you will always have free swimmers that never get touched by it which continues the infection... At that high of UV exposure you will kill the planktonic life that also feeds corals/clams so that's bad too if you have them. I think its a balance for a reef like everything else. For a fish only it would be good to run that rate but for a reef uv ran to high could mess things up. I ran it to help on a algae outbreak/clarifier and if it killed ich in multiple passes so be it but I cared more about the planktonic life so I ran mine close to what AquaUV specified for a reef.

Good luck.

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Yea that's good input too thanks for that, I do have a huge clam and some corals/frags in there now while my tank goes fallow. I have 2 months to go before the fish go back in. I am going to use the Jebao DCT-4000 for the UV.

As far as plumbing goes, whats your thoughts on that?

 

[luvreefs23]

I just installed one on a 330 gallon and used a sicce syncra 1.5
That's rated at 357 gph but you figure with tubing and gunk along with head pressure in the uv alone you should be real close to 300-320 gph. It's a silent pump and I have the feed coming from the return area in the sump and output into the drain area. I don't see that really mattering as long as you are pushing correct amount of water thru a properly sized uv for your tank.

 

[luvreefs23]

I also got a 80 watt on a 375 reef for years now with a giant clam and coral galore, corals are fine. I think it's one of them splitting hairs scenarios. I run a 57 watt on a 120 with a 325 gph flow thru rate and things are great. I don't look at uv'S as a cure all I'm never gonna get ich device but anything I can add to a tank that adds to my arsenal against unwanted parasites I try to incorporate

 

[thabizness]

I have my uv in the sump. The pump running the UV is by the in-flow area for the sump. The outflow of the UV is by my return pump so sterilized water goes to the display. I run a little higher then most but I am the same - if it helps even a little it's better then nothing.

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