So my BB can process 5ppm of ammonia in less then 12 hours but my nitrite level won't go down. I have been doing 50% water changes weekly and Have a Eheim 2213 filter.
Thanks!
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No idea a few weeks worth... It's also a heavily planted tank.
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Well 1ppm ammonia is equal to 2.7ppm nitrite so if you have dosed 10ppm ammonia in total that's 27ppm nitrite. The test kit only reads up to 5ppm so it's probably coming down slowly. No more ammonia
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^This is why on the fishless cycle I learned once you detect nitrites you only dose 1/2 the amount of ammonia you were dosing every fourth day.
I agree no more ammonia for at least 4 days.
You can dilute your test and then multiply the results if you need to know what level your tank is at,but just waiting a couple days is easier.
A proper fishless cycle should never need a water change IMO.(Until completed and then to set nitrates at safe level).