Sudden nitrite drop without a water change?

[FishNewbie82912]

I’m cycling a new tank. I’ve hit the part where I’m in the nitrite spike. I tested last night and I was at 1ppm but I just dosed the tank with prime and stability knowing I was going to do a water change first thing this morning. So I tested again this morning and it went to .25ppm. I even tested again to make sure I did the test right. Is that possible to happen without a water change?

The background for other parameters:
Ammonia 0 (2 days in a row!!!!)
Nitrates 10ppm
Temp 79
75 gal
Gh 14 drops (api test)
Kh 12 drops (api test)
Ph 8.2

Chemicals used in the tank - SeaChem prime, stability, pristine, stress guard
and for gh and kh Fritz? rift lake salt and buffer. Also used some aquarium salt for some nipped fins.

 

[FishNewbie82912]

Oh and my stock includes 10 peacock cichlids, 2 electric yellow cichlids, 2 clown placid, 4 rainbow fish.

 

[Sgooosh]

i think ammonia --->nitrite

 

[Essjay]

It means the nitrite eaters are growing. You have enough ammonia eaters as the reading for that has been zero for 2 days in a row. You didn't have enough nitrite eaters but they've been multiplying so you have a lot more of them than you did last night and they've removed a lot of nitrite overnight.

 

[FishNewbie82912]

It means the nitrite eaters are growing. You have enough ammonia eaters as the reading for that has been zero for 2 days in a row. You didn't have enough nitrite eaters but they've been multiplying so you have a lot more of them than you did last night and they've removed a lot of nitrite overnight.

Oh wow! And that’s quite an improvement to go from 1 to .25. That’s amazing how the bio cycle takes over.