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Pet Forum / Aquaria / Marine Reef / May 2007a dumb question
I know this is a dumb question but here is goes: Does oxygenated water reduce Nitrates? No oxygen does not reduce nitrates. However on a similar note, ammonia degases fairly well, so aeration will degas ammonia, thus less ammonia to be converted into nitrates. In fact there are degassing towers that are sometimes used in the industry to degas ammonia, in fact that is one of the advantages of a wet dry filter, it helps degas ammonia, though I don't recommend a wet dry filter for reef tank. Denitrification (low oxygen) reduces nitrates. Wayne Sallee Wayne's Pets Wayne@WaynesPets.com Peter Pan wrote on 5/16/2007 9:19 PM: > I know this is a dumb question but here is goes: Does oxygenated water > reduce Nitrates? > Denitrification (low oxygen) reduces nitrates. Thanks Wayne, can you explain Denitrification for me? Does this mean adding macro algea? The end result is I would like to reduce my nitrates. I keep them under 15pmm via 1/3 water changes each month. I was hoping there was a way I could do even less and get the same results >> Denitrification (low oxygen) reduces nitrates. > [quoted text clipped - 3 lines] > 15pmm via 1/3 water changes each month. I was hoping there was a way I > could do even less and get the same results Read up on the nitrogen cycle: http://faq.thekrib.com/begin-cycling.html Denitrification occurs with bacteria in the absence of oxygen. Oxygen starved bacteria pull the oxygen off of nitrate and release nitrogen gas which out-gases from the water. This bacteria lives in deep sand beds and in crevices of live rock. --Kurt You should own at least one good book on reef keeping. Any book on reef keeping will explain denitrification. Basically it is bacteria in low oxygen environments like down in the sand, and deep in the live rock. The oxygen is very low there, and so the bacteria takes oxygen from nitrates, and converts it to nitrites, and then converts the nitrites into nitrogen gas. Wayne Sallee Wayne's Pets Wayne@WaynesPets.com Peter Pan wrote on 5/17/2007 4:14 PM: >> Denitrification (low oxygen) reduces nitrates. > [quoted text clipped - 3 lines] > 15pmm via 1/3 water changes each month. I was hoping there was a way I > could do even less and get the same results Chemistry was never my strong suit, thats why I needed someone to break it down for me. In other words I have no clue as to what you just wrote > You should own at least one good book on reef keeping. Any book on reef > keeping will explain denitrification. [quoted text clipped - 16 lines] >> 15pmm via 1/3 water changes each month. I was hoping there was a way I >> could do even less and get the same results Ok, Nitrate NO3 Nitrite NO2 Nitrogen N2 Bacteria in a low oxygen environment takes oxygen away from NO3 making it NO2, and then bacteria takes oxygen from NO2, making it N2. Wayne Sallee Wayne's Pets Wayne@WaynesPets.com Peter Pan wrote on 5/17/2007 7:32 PM: > Chemistry was never my strong suit, thats why I needed someone to break it > down for me. In other words I have no clue as to what you just wrote [quoted text clipped - 17 lines] >>> 15pmm via 1/3 water changes each month. I was hoping there was a way I >>> could do even less and get the same results Wayne, I understand that this is the chemical breakdown, at least I understand it to a point, but I still dont know is there anything I need to do or was this a simple chemistry lesson. > Ok, > [quoted text clipped - 33 lines] >>>> under 15pmm via 1/3 water changes each month. I was hoping there was a >>>> way I could do even less and get the same results > I understand that this is the chemical breakdown, at least I understand it > to a point, but I still dont know is there anything I need to do or was this > a simple chemistry lesson. What *you* have to do is provide the low-oxygen environment that is conducive to the growth of this type of bacteria. A good quantity of live rock and sufficient water flow is one environment. A deep sand bed under the right circumstances is another. The so-called "nitrate reactor" is another. Be aware that this type of bacteria will take months to become established. The live rock route is favorite because, with any luck, there will be a small starter colony of bacteria in the rock. George Patterson If you torture the data long enough, eventually it will confess to anything. It's a common conception that this can only be done by bacteria that can't live in a well oxygenated environment, but I don't agree to that. In other words, a collony of aerobic bacteria placed in a low oxygen environment will reduce nitrates. That is my belief. I could be wrong, but I don't think I am. So while it takes time to get an establishment of bacteria growing,it does not take much time to cause a colony of aerobic bacteria to change it's protocal to work towads reducing nitrates, by changing the enviroment so that the bacteria is in low oxygen levels. Wayne Sallee Wayne's Pets Wayne@WaynesPets.com George Patterson wrote on 5/18/2007 8:34 PM: >> I understand that this is the chemical breakdown, at least I >> understand it to a point, but I still dont know is there anything I [quoted text clipped - 12 lines] > If you torture the data long enough, eventually it will confess > to anything. OK So what should I do. So far everyone has offered an opinion as to how things happen, but no one has said what needs to be done. Can someone please tell me what to do in simple terms. Thank you > It's a common conception that this can only be done by bacteria that can't > live in a well oxygenated environment, but I don't agree to that. In other [quoted text clipped - 26 lines] >> If you torture the data long enough, eventually it will confess >> to anything. What you can do is to have more live rock, and more live sand. Wayne Sallee Wayne's Pets Wayne@WaynesPets.com Peter Pan wrote on 5/19/2007 9:20 PM: > OK So what should I do. So far everyone has offered an opinion as to how > things happen, but no one has said what needs to be done. Can someone please [quoted text clipped - 29 lines] >>> If you torture the data long enough, eventually it will confess >>> to anything. Thank you Wayne > What you can do is to have more live rock, and more live sand. > [quoted text clipped - 38 lines] >>>> If you torture the data long enough, eventually it will confess >>>> to anything. Well if its a dumb question then it ought to be right up Waynes and Pszemols alley...... <<>> <<>>> Denitrification (low oxygen) reduces nitrates. <<>> <<>>Thanks Wayne, can you explain Denitrification for me? Does this mean <<>>adding macro algea? <<>>The end result is I would like to reduce my nitrates. I keep them under <<>>15pmm via 1/3 water changes each month. I was hoping there was a way I <<>>could do even less and get the same results <<>> ------- I forgot more about ponds and koi than I'll ever know! |
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