Who Gives A Fish Forums

Gonna echo the test kit thing. Had a buddy freak out over 'high nitrites' that were just a bad API bottle. Try a different kit or strip to confirm.

My tank did this once after a power outage. Filter was off for hours, bacteria died off. You lose power recently?

Thanks, all. Kit's new, but I'll grab a strip to double-check. Gonna dose Prime and do another water change tonight. Appreciate the help.