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Pet Forum / Aquaria / Cichlids / December 2006Nitrates
Hey there, I am having trouble with nitrates. They are running around 40ppm. At what levels do things get toxic for freshwater fish? Specifically the big cichlids like Oscars and Red Devils. The nitrates are 40ppm out of the tap by the way.. water changes do nothing. I'm looking into a reverse osmosis setup. Thanks! Charlie > Hey there, > [quoted text clipped - 9 lines] > > Charlie I had a similar problem, and in desperation I purchased another test kit - the new kit showed a more accurate reading - Just a thought! --- David Scott Hampshire, England One possibility is the inaccuracy of the test kit you're using to test nitrates. If you water supply is treated with chloramines and you're testing after adding a dechlorinator, the test kit may be showing the ammonia debonded from the chlorine. Try testing your tap water before dechlor is added, and after. Also, try testing after it sits for a day or more. just some thoughts, steve > Hey there, > [quoted text clipped - 9 lines] > > Charlie > One possibility is the inaccuracy of the test kit you're using to test > nitrates. If you water supply is treated with chloramines and you're [quoted text clipped - 5 lines] > just some thoughts, > steve Well this is actually my second set of tests just for that reason. Plus the local fish store confirms my findings. 40ppm. I have ~40ppm of nitrates coming out of the tap. That's not in question anymore. The question now is how to deal with this. I have a 240 gallon tank so the nitrate sponge stuff for the filters is getting expensive. I'm considering the purchase of an RO filter with the De-ionizer for nitrates. Anyone have any experience with these things? R.O units remove all minerals from the water as well as nitrates. My is suggestion is to find a water treatment specialist in your area. This would usually be a plumber that also installs and repairs well pumps. I talked to my plumber about this. He usually adds a module to add calcium to make sure the ph stays above 7.0. Water with a ph lower than 7 is acid and will eat pinholes in copper pipe. If you have africans, you will want to increase the ph and alkalinity. You can also find units for sale at Big Als.com and That Fish Place. However the plumber can provide you with some advice and depending upon your home, can run a line to your refrigerator for cold water and ice. >> One possibility is the inaccuracy of the test kit you're using to test >> nitrates. If you water supply is treated with chloramines and you're [quoted text clipped - 15 lines] > getting expensive. I'm considering the purchase of an RO filter with the > De-ionizer for nitrates. Anyone have any experience with these things? > R.O units remove all minerals from the water as well as nitrates. My is > suggestion is to find a water treatment specialist in your area. This would [quoted text clipped - 26 lines] >>getting expensive. I'm considering the purchase of an RO filter with the >>De-ionizer for nitrates. Anyone have any experience with these things? I'm not sure why this is a problem. While ammonia and Nitrites are bad news, nitrates are pretty harmless to fish. Why not just fill your aquarium with lots of plants. They will remove the nitrates as well as looking really good. |
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