brybell
Aquarium Advice Activist
Your nitrites are off the charts high and the test can not read the results accurately. If the tube turns purple immediately upon testing then they are off the chart and you do not need to wait. As nitrites start to drop to readable levels, your test will start off blue and gradually turn purple over 5mins- it never works in reverse (purple to blue/grey/white/hot pink etc).
thanks for helpin. ok...well i swear it did turn purple right away but then 5-10mins later it was blue, never did that before.