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Old 03-27-2013, 04:38 AM   #1
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Having issues keeping the nitrate levels below 40ppm with my messy goldfish and they're only getting bigger. There's plenty of choices for sw tanks but when it comes to fw no one seems to agree on what to use and if it even works.
I did see a nitrate reductor for fw but it is over $300. But all denitrators just create an oxygen free environment for the anaerobic bacteria to grow, just like a denitrate coil does and can be build for under $50.
So, does anyone here have any hands on experience using one in a fw?
Here's a pretty interesting read/build about it but the results never got posted.
http://forum.simplydiscus.com/archiv...p/t-62268.html
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Old 03-27-2013, 12:18 PM   #2
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I have used 3 different types

A shuran nitrate reactor run with sulpha beads and alcohol fed both rubbish
A aquamedic nr1000 which us aquamedic own brand deniballs which brake down over time also rubbish

40ppm nitrate is nothing no need to fuss over that

Some fish can tolerate high nitrate in my heavy stocked old 350 gal tank my nitrates was never below 125 ppm and my FW rays bred in that time and time again

As you are keeping cold water fish then just do 75% water changes per week with a good tap water conditioner like seachem prime and you will be fine

Also clean your filters more often as goldfish are messy

At 40ppm that's nothing to worry about
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Old 03-27-2013, 12:59 PM   #3
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I would like to be at 40ppm, average is above 100
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Old 03-28-2013, 11:38 AM   #4
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Just do more and bigger water changes its cold water so a temp drop isn't a problem

The only sure way to get rid of nitrate is water changes

I have spent over $2000 with different bits of kit trying to lower nitrates

Nothing on the market works well so not much pont in wasting money trying

The best results I had was a 55g connected to my main tank filled with plants as its not poss to put plants in my main tank
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Old 03-28-2013, 04:47 PM   #5
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Originally Posted by T1KARMANN View Post

The best results I had was a 55g connected to my main tank filled with plants as its not poss to put plants in my main tank
Plants are great for removing nitrates. I know goldfish tend to destroy them, but have you seen BBradbury's setups using terrestrial plants with their roots hanging in the water? If you could get something like that set up, you could probably get a pretty good reduction in your nitrates.
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Old 03-28-2013, 05:08 PM   #6
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What about a reactor with seachem denitrate?
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Old 03-28-2013, 05:29 PM   #7
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Do you really want to start setting up reactors for a goldfish tank

What size is this tank
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Old 03-28-2013, 05:55 PM   #8
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90 gallon with a 20 gallon sump. It has to be as self efficient as possible, because of my job (otr driver) I'm not home to keep an eye on it 24/7 and want to make it as easy as possible for the wife.
And yes goldies are hardy fish but I want as close to perfect parameters as I can get. And I like tinkering with new things.
Also want a reef tank in the future, but first I want to have fw systems down to the T
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Old 03-28-2013, 06:00 PM   #9
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90 gallon with a 20 gallon sump. It has to be as self efficient as possible, because of my job (otr driver) I'm not home to keep an eye on it 24/7 and want to make it as easy as possible for the wife.
Hang a good light over your sump and plant it heavily! If you put the lights on a timer, you won't have to do much but trim them. And depending on the plants, you can feed the goldfish some of the trimmings.
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Old 03-28-2013, 06:23 PM   #10
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I use a plant called pothos, with two of my aquariums. Ever since using the plants, have noticed a reduction in nitrate levels, lately my 180 gal. stocked with 10 bichir various sizes, took a test from my api master kit, got a reading level of zero. It has a lot to do with your bioload, and how often you do water changes. Sometimes your tap water may be the culprit. I have the plant in my over flow on the 180 gal., because of my silver dollars, 29 gallon african butterfly fish, and bichir grow out have plant stem with root sticking in the tank itself, but have other plants in there such as hornwort, java fern.
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