Anyone have HR nitrite checker

[2020 Worst Year]

So added 10 drops got me to 0.73 ammonia added 5 more drops to get me to 1ppm going to check it 2morrow and hopefully the 1ppm is gone

 

[2020 Worst Year]

i think the nitrite test is wrong

 

[2020 Worst Year]

@Randy Holmes-Farley
so my ammonia has went down 0.1ppm but my nitrite has went up 2ppm giving me 8ppm nitrite what is going on lol

i have a salifert nitrite kit coming 2morrow shall i just go off that?

 

[Lasse]

The hanna ULR nitrite checker (just ordered and arrived today) is blinking 200ppb

the hanna HR nitrite checker is reading 18ppm

think im going to do x2 50% water changes today get nitrite down

Note - the Hanna ULR Marine Nitrite checker give the answer in ppb NO2-N. It means that you should multiply with 3,29 and divide with 1000 in order to get ppm. If you read 100 ppb NO2-N - it means that it is 100*3,29/1000 -> 0.329 ppm NO2. 200 ppb NO2-N (max detection level) is 0.658 ppm NO3

I have used this ULR NO2-N checker and compared with professional analyzes and it is rather good as a tool even if the accuracy is as low as ± 0,0329 ppm. In my comparisons - my results have been within these values by a good margin.

Sincerely Lasse

 

[2020 Worst Year]

Note - the Hanna ULR Marine Nitrite checker give the answer in ppb NO2-N. It means that you should multiply with 3,29 and divide with 1000 in order to get ppm. If you read 100 ppb NO2-N - it means that it is 100*3,29/1000 -> 0.329 ppm NO2. 200 ppb NO2-N (max detection level) is 0.658 ppm NO3

I have used this ULR NO2-N checker and compared with professional analyzes and it is rather good as a tool even if the accuracy is as low as ± 0,0329 ppm. In my comparisons - my results have been within these values by a good margin.

Sincerely Lasse

it's blinking 200ppb on the ULR off the charts

what do i do for the high range 1 do i divide by 3.29 ? if i did divide the HR 1 my results would make alot more sense

High range says it's 8ppm nitrite currently

 

[Reef_Freak720]

I didn't even know Hannah made nitrite checkers.

I usually just use api tests for cycling

 

[Randy Holmes-Farley Verified Community Expert]

I didn't even know Hannah made nitrite checkers.

I usually just use api tests for cycling

I mostly wouldn't bother with nitrite testing, even when cycling, unless you have a specific reason to want to monitor it.

 

[Randy Holmes-Farley Verified Community Expert]

what do i do for the high range 1 do i divide by 3.29 ? if i did divide the HR 1 my results would make alot more sense

No, I posted that earlier with a direct quote from the manual.

 

[Randy Holmes-Farley Verified Community Expert]

Repeating the quote from the manual for the high range:

The instrument displays the nitrite (NO–2) concentration in ppm. To convert the displayed concentration to nitrate-nitrogen(NO–2-N) divide the reading by 3.29. To convert the displayed concentration to sodium nitrite(NaNO2) multiply the reading by 1.5. The checker automatically turns off 2 minutes after reading.

 

[2020 Worst Year]

Repeating the quote from the manual for the high range:

The instrument displays the nitrite (NO–2) concentration in ppm. To convert the displayed concentration to nitrate-nitrogen(NO–2-N) divide the reading by 3.29. To convert the displayed concentration to sodium nitrite(NaNO2) multiply the reading by 1.5. The checker automatically turns off 2 minutes after reading.

but i don't understand how has my ammonia went down 0.1ppm but my nitrite has went up 2ppm and is now 8ppm

 

[2020 Worst Year]

is the tester just wrong?

 

[2020 Worst Year]

its back up to 8ppm even with a 95% water change

 

[2020 Worst Year]

so 0.1ppm ammonia = 2ppm nitrite it must the tests says it is

 

[Reef_Freak720]

I mostly wouldn't bother with nitrite testing, even when cycling, unless you have a specific reason to want to monitor it.

The couple times I cycled a tank, I would look for my nitrites to test 0(that nice aqua blue with api) then I knew I was good.

I mean obviously I was checking ammonia too but I felt good about it when nitrites were doneski

 

[Lasse]

The tester you use is for fresh water as I understand - it can have importance. Are you using the marine version of the ammonia checker? HI784?

0.1 ppm ammonia totally converted to nitrite is 0.26 ppm NO²¯ (0.1 ppm NH⁴ = 0.1*14/18 NH⁴-N = 0.078 NH⁴-N -- 0.078 NO²¯-N =0.078*46/14 NO²¯ = 0.26 ppm NO2

relatively atomic weight
N=14
H=1
O=16

Sincerely Lasse

 

[2020 Worst Year]

The tester you use is for fresh water as I understand - it can have importance. Are you using the marine version of the ammonia checker? HI784?

0.1 ppm ammonia totally converted to nitrite is 0.26 ppm NO²¯ (0.1 ppm NH⁴ = 0.1*14/18 NH⁴-N = 0.078 NH⁴-N -- 0.078 NO²¯-N =0.078*46/14 NO²¯ = 0.26 ppm NO2

relatively atomic weight
N=14
H=1
O=16

Sincerely Lasse

the hanna HR nitrite checker is for fresh water that would make ALOT of sense yes the ammonia checker is for marine HL784

 

[2020 Worst Year]

it says the hanna HR nitrite checker is for salt water also

 

[2020 Worst Year]

The tester you use is for fresh water as I understand - it can have importance. Are you using the marine version of the ammonia checker? HI784?

0.1 ppm ammonia totally converted to nitrite is 0.26 ppm NO²¯ (0.1 ppm NH⁴ = 0.1*14/18 NH⁴-N = 0.078 NH⁴-N -- 0.078 NO²¯-N =0.078*46/14 NO²¯ = 0.26 ppm NO2

relatively atomic weight
N=14
H=1
O=16

Sincerely Lasse

well im my aquarium 0.1ppm ammonia = 2ppm nitrite going by the tests

 

[Randy Holmes-Farley Verified Community Expert]

Trying to get exact answers from test kits can be like getting blood from a stone. Trying to match up different tests like you are is especially difficult.

In this context, the best advice I can give is to focus on ammonia and seeing it drop from a few ppm to very little.

If that happens, nothing else matters, not even the exact ammonia levels.

 

[2020 Worst Year]

do i diluted 1ml tank water with 9ml fresh salt water got 158ppb x 10 = 1580 x 3.29 = 5198 divided by 1000 = 5.1982 nitrite still crazy high saying as my tank is not converting that much ammonia