Apulo Posted March 21, 2022 Share Posted March 21, 2022 For the past week or so I have been fighting elevated nitrite levels in my 14 gallon tank. It all started when I was using the Tidal 35 filter and I rinsed out both sponges in tank water. That's when I first noticed nitrite levels creeping up. Testing shows no ammonia, just elevated nitrite and nitrates. I have since moved to a Fluval 107 which has much more sponge surface area and about 3-4x the biological media, I understand that change is going to take a bit to re-cycle. Water params as follows: Ammonia 0ppm Nitrite 5ppm Nitrate 50ppm GH 150ppm KH 40ppm pH 6.8-ish I'm doing water changes and treating with Prime every other day and adding API Stress Zyme daily. The fish look fine. The Otos are happily clung to the glass munching on a bit of algae and the Cories are eating and hiding and playing tag with each other. Right now I'm riding it out but I'm open to other suggestions. Link to comment Share on other sites More sharing options...
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