Jescereal Posted October 18, 2021 Share Posted October 18, 2021 First of all, please quarantine your fish. I did a two week quarantine when I added new rummy nose tetras but it wasn’t enough it seems. As I added them I’ve been slowly losing fish at least once a day. Seems to have slowed down though. I lost a rainbow to whatever this disease is already. Can anyone with some experience help? I assume Columnaris so I’m dosing Maracyn. I’ve had these rainbows for a year now. No issues until I introduced the new fish. I’m only seeing this on the rainbows. 75g tank. pH 6.8 Nitrates 10 Hardness 300ppm Nitrite 0 Ammonia 0 KH/Buffer 40ppm Water Temperature 77 Link to comment Share on other sites More sharing options...
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