PPM and Mg/L

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FUSION1296

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Jun 6, 2004
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hi all , sorry to ask a silly question , i am cycling my tank and my test kits ( tetra) ( im in the UK ) are all marked in mg/L and all the people here talk about PPM , is say, 20mg/l the same as 20ppm, i have in my tank 5 days after adding my first fish ( sorry doing a fish cycle) ammonia 0.0 mg/l nitrites 0.6 mg/l nitrates 16mg/l PH is 8 , it says on the leaflet that comes with the kits that all those readings are ok , but i would like to compare them with other people here
thanks
 
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kveeti

kveeti

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Jun 12, 2002
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Yes, ppm & mg/L readings are the same thing. Some booklets even have the two side by side, i.e. in my nitrite booklet it says "0 - 3.3 mg/L (ppm) N02".
 
daveedka

daveedka

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Jan 30, 2004
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it says on the leaflet that comes with the kits that all those readings are ok , but i would like to compare them with other people here
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During a fishy cycle, this isn't too bad for a reading, I try to keep my nitrites under 0.5 ppm(mg/l) anytime a fish is in the water. With hardy fish that level will ensure no long term damage IMO. If in doubt, reduce it lower with a water change. once the cycle is done you should read 0 on both nitrites and ammonia all the time.
 
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