Quote:
Originally Posted by Silock
Thanks. I just vacuumed the gravel again to make sure there wasn't any decomposing food I might have missed. Ended up doing another small water change because of it. I will test again in the morning to see what the levels are. Hopefully, this was just a mini-cycle and I can replace the two fish soon.
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I have to believe it was a mini-cycle due to the new fish. You cycled it with a single betta, right?
I'd say that's more likely than decomposing food. Decomposing food wouldn't cause a near-instant big spike like that.