Strange Nitrite Tests

[flash22]

i am just doing my second fishless cycle

i am getting some strange nitrite results. starts out light blue then turns to purple after a few Min's whats not on the card but i am getting a nitrate (last time it turned purple in the bottom of the tube = off scale)

Ph 7.4
Nitrate 30-40
Ammonia 0-4 depending (Ammonia is dropping in 8-9 hours)

nearlly forgot i am using an Api liquid test kit

 

[rdd1952]

With API kit, when the nitrite is very high, the color will turn to either green or clear after a very short time. If you put the drops in and they immediately turn purple in the bottom of the tube even before you have a chance to shake it up, then your nitrite is off the chart high.

 

[flash22]

thats what i had before with the last tank had a few days like that this time but all i seem to get now is light blue 2-3 mins later it turns purple (same colour as off-scale)

 

[rdd1952]

I would say it is still correct. When I was cycling, there was a time early in the process when my tests did that. Then as the level got higher the drops started turning immediately purple.

 

[LynnJ]

With API kit, when the nitrite is very high, the color will turn to either green or clear after a very short time. If you put the drops in and they immediately turn purple in the bottom of the tube even before you have a chance to shake it up, then your nitrite is off the chart high.

Mine turns dark blue on the buttom and then disappears before I even shake ...does this mean the nitrite is there somewhere? Not purple yet buy just dark blue on the bottom then turn to clear color. I am using the same kit

 

[flash22]

I would say it is still correct. When I was cycling, there was a time early in the process when my tests did that. Then as the level got higher the drops started turning immediately purple.

oh ok i thought as much. just seems strange thats all. wait and see i guess

 

[rdd1952]

I've never heard of one turning clear quickly but I have heard of it happening over a few minutes. That is also a sign of very high nitrite.

 

[LynnJ]

I've never heard of one turning clear quickly but I have heard of it happening over a few minutes. That is also a sign of very high nitrite.

Yeah it is not that quick but it disappears over a time. I was think as the other test like ammonia it always stays there but the nitrite I can see the dark blue on the button but when I take it to look in a broad light place it is always less than the first initial but still no purple color yet